The Talmud

Customs are more powerful than laws.

For the sake of peace one may lie, but peace itself should never be a lie.

God said: you must teach, as I taught, without a fee.

He that gives should never remember, he that receives should never forget.

Hold no man responsible for what he says in his grief.

Humor the sons of the poor, for they give science its splendor.

Learning is achieved only in company.

Be eager to fulfill the smallest duty and flee from transgression for one duty includes another and one transgression induces another transgression.

Beware of too much laughter, for it deadens the mind and produces oblivion.

Never expose yourself unnecessarily to danger; a miracle may not save you...and if it does, it will be deducted from your share of luck or merit.

Live well. It is the greatest revenge.

He who carries out one good deed acquires one advocate in his own behalf, and he who commits one transgression acquires one accuser against himself. Repentance and good works are like a shield against calamity.

Man has three friends on whose company he relies. First, wealth which goes with him only while good fortune lasts. Second, his relatives; they go only as far as the grave, leave him there. The third friend, his good deeds, go with him beyond the grave.

Until a child is one year old it is incapable of sin.

Whoever destroys a single life is as guilty as though he had destroyed the entire world; and whoever rescues a single life earns as much merit as though he had rescued the entire world.

When love is strong, a man and a woman can make their bed on a sword's blade. When love grows weak, a bed of 60 cubits is not large enough.

Who can protest and does not, is an accomplice in the act.