Pain has its reasons, pleasure is totally indifferent.

Some suggestions for you :

God invented concubinage, satan marriage.

The family spirit has rendered man carnivorous.

A free spirit takes liberties even with liberty itself.

Men have always need of god! A god to defend them against other men.

Knowledge is ancient error reflecting on its youth.

My ass contemplates those who talk behind my back.

The essence of a man is found in his faults.

Let us never forget that the greatest man is never more than an animal disguised as a god.

Good taste is as tiring as good company.

If you want to have clean ideas, change them as often as your shirt.

The world is divided into two categories: failures and unknowns.

Maybe men are separated from each other only by the degree of their misery.

A new gadget that lasts only five minutes is worth more than an immortal work that bores everyone.

Youth doesn't reason, it acts. The old man reasons and would like to make the others act in his place.