The best weapon against an enemy is another enemy.

Some suggestions for you :

Write with blood, and you will find that blood is spirit.

What do I care about the purring of one who cannot love, like the cat?

The worst readers are those who behave like plundering troops: they take away a few things they can use, dirty and confound the remainder, and revile the whole.

It is invisible hands that torment and bend us the worst.

Before the effect one believes in different causes than one does after the effect.

One repays a teacher badly if one always remains nothing but a pupil.

One thing a man must have: either a naturally light disposition or a disposition lightened by art and knowledge.

And if you are not a bird, then beware of coming to rest above an abyss.

You say you're a pessimist, but I happen to know that you're in the habit of practicing your flute for two hours every evening.

Sing me a new song; the world is transfigured; all the Heavens are rejoicing.

Alcoholic drinks do not agree with me. A single glass of wine or beer a day is amply sufficient to turn life into a valley of tears for me.

We do not hate as long as we still attach a lesser value, but only when we attach an equal or a greater value.

It is the business of the very few to be independent; it is a privilege of the strong. And whoever attempts it, even with the best right, but without being OBLIGED to do so, proves that he is probably not only strong, but also daring beyond measure.

Aristotle says that in order to live alone one must either be an animal or a god. The third alternative is lacking. A man must be both; a philosopher.