A single grateful thought toward heaven is the most perfect prayer.

Some suggestions for you :

Would that we could at once paint with the eyes! In the long way from the eye through the arm to the pencil, how much is lost!

A heretic is a man who sees with his own eyes.

For me the greatest beauty always lies in the greatest clarity.

The most deadly fruit is borne by the hatred which one grafts on an extinguished friendship.

If some things don't make you lose your sense of reason, then you have none to lose.

He who doesn't lose his wits over certain things has no wits to lose.

One can drink too much, but one never drinks enough.

It is not the truth that a man possesses, or believes that he possesses, but the earnest effort which he puts forward to reach the truth, which constitutes the worth of a man.

Let the devil catch you but by a single hair, and you are his forever.

For the will and not the gift makes the giver.

Let us be lazy in everything, except in loving and drinking, except in being lazy.

They make glorious shipwreck who are lost in seeking worlds.

Absolute truth belongs to Thee alone.