"We must wholeheartedly believe in free will. If free will is a reality, we shall have made the correct choice. If it is not, we shall still have not made an incorrect choice, because we shall not have made any choice at all, not having a free will to do so."
E. N. Lorenz (MIT). The Essence of Chaos (Univ. of Washington Press, 1993), p 160. In AAAS Science 23 May 2008: Vol 320, no 5879, p 1025.
Free Will, Every Day

If there is anything to the idea of free will, I feel it must mean that
humans always have it in their power to change their earlier choices at
any time for the better, or strengthen them if that seems better. Here
we have a palindrome in Byzantine Greek found on baptismal fonts in New
York City. It translates roughly as 'Wash away your errors and not just
make your face clean.' It is a palindrome because identical letters are
found when read from left to right or right to left -- accent marks are
secondary and are sometimes left out. In Greek, "palin" means "again",
and "dromos" refers to "traveling speedily by foot"(as in the etymology
of the word "dromedary").
Whether we have free will or do not is an old question. When the early
Greek philosophers understood that matter was atomic in essence, it was
clear that this suggested a mechanical world built of atoms and bunches
of atoms knocking together mindlessly with no room for volition: humans
and animals would be types of simple machines, responding to any forces
that might bear on them, whether physical or psychological. Perhaps the
first theorist to face this problem directly was known to the Romans as
as Epicurus, and to the Greeks as Epikouros (’Επίκουρος), 342-270 BC.
Epikouros introduced the idea that have the opportunity for free action
because atoms might be more than simple pin-ball marbles : perhaps they
might "swerve" a very small bit randomly now and then, thus allowing us
the chance to make choices on our own. We can compare this idea to the
experimentally established 'uncertainty relationship' between the speed
and location of quite small particles that appears almost everywhere in
serious modern physics ( link here ).
Epikouros accepted women and slaves as his students, and his reputation
was attacked. Although Epikouros was virtuous himself according to the
very different social standards of his period, his rivals promoted much
malicious gossip about him which eventually poisoned his good name. It
was a man's world, so to speak, for philosophers in Greece. Competitive
philosophical schools vied for followers. In such a situation, jealous
rumors and remarks circulated widely about any rival school of thought,
and the free marketplace of ideas began to have the nature of a college
fraternity competition. Stoics thus had to show that their gloomy view
was better than that of the politicized followers of Plato, or the more
or less scientific students of Aristotle, and that they were surely far
finer people than the quiet herd inspired by moderate Epikouros.
Commonly, among the later followers of any striking personality will be
individuals who bring the ideals of the founder into disrepute. Thus in
Rome (250 years later), the orator Cicero delivered a speech in a court
trial that he later carefully preserved. In it, Cicero mocked one Piso
for his fancy "epicurean" life style. Since Cicero himself was wealthy,
this famous speech was a masterpiece of hypocrisy, and tells us as much
about Cicero as Piso. Even so, Cicero's speech had long-term effects in
later centuries since Cicero's Latin style was esteemed by the medieval
monks who preserved copies of Roman writings. (Although not a committed
Stoic, Cicero allowed a Stoic philosopher named Diodotus to live in his
own household for many years, and often talked for hours with him.)
In the Middle Ages Cicero's remarks became the accepted way of thinking
about many things in the ancient world, one result being that Epikouros
got to be known as a libertine and type of reprobate. Misleadingly, the
word "epicurean" today can suggest anything but the restrained ideas of
Epikouros about the best way to live and behave.
For Epikouros, existence should not be a life of suffering: we ought to
avoid making ourselves miserable with greedy behavior that backfires or
creates unhappiness. We should try to stay comfortable, yet remain good
and kind. We have the freedom to choose our paths, and we should do so.
Live indeed: but avoid acts that will bring regret, guilt or shame from
others in the end! Enjoy friendship; enjoy each day. For peace of mind,
relax, remain contented, and find the best, even if you are not wealthy.
A corollary of this was that Epikouros taught we shouldn't enter public
life if we want to be happy. It will only bring frustration and anxiety,
if not conflict. Political involvement was important for many people in
his time, and a 'private' man (or woman) was considered ridiculous then
and even today too.
Epikouros lived centuries before the distillation of alcohol and before
alcoholism was discussed as a social problem. Myth and legend of course
described murderous brawls that arose from too much wine, but the 'task'
of getting drunk required more effort at that time than now. Epikouros
wanted his followers to enjoy meals as friends and to not let anyone be
carried away with mindless behavior. Solitary indulgence seems against
his goal of bringing happiness, and, as to alcoholism, my guess is that
he would say that if you haven't been easily able to walk away from the
wine cup, don't walk toward it. If you will regret it: Don't go get it.

Epikouros doubted the significance of the Greek gods of his
century: he believed that a quiet and peaceful life was the
best life, and he didn't ask his followers to abstain: just
don't overdo; count up your drinks. After all, to drink too
much too quickly dulls the mind so that it promptly reduces
your happiness, neh? Since friendship is a fine thing, who
would want to lose a friend because one or the other of you
had lost your free will to make good decisions? It's clear
that this Stop Here! Now! should apply with even more force
to the glut of other intoxicants which damage the judgement
(and hurt the brain or body), and that are too common today
some two thousand, four hundred years after he lived.
See my page "Are Atoms Predictable?" under "Special Topics."