Not all citizens can be equally strong; but they can all be equally free.

I have been a hundred times on the point of killing myself, but still was fond of life. This ridiculous weakness is perhaps one of our worst instincts. What can be more absurd than choosing to carry a burden that one really wants to throw to the ground? To detest, and yet to strive to preserve our existence? To caress the serpent that devours us, and hug him close to our bosoms till he has gnawed into our hearts?

Being a bird ain't all about flying and shitting from high places.

No problem can withstand the assault of sustained thinking.

The man who says to me, "Believe as I do, or God will damn you," will presently say, "Believe as I do, or I shall assassinate you."

If it's too silly to be said, it can always be sung.

The system of Descartes... seemed to give a plausible reason for all those phenomena; and this reason seemed more just, as it is simple and intelligible to all capacities. But in philosophy, a student ought to doubt of the things he fancies he understands too easily, as much as of those he does not understand.