Whoever in debate quotes authority uses not intellect, but memory.

It's not enough that you believe what you see. You must also understand what you see.

The lover is moved by the thing loved, as the sense is by that which perceives, and it unites with it and they become one and the same thing... when the lover is united with the beloved it finds rest there; when the burden is laid down there it finds rest.

The vine that has grown old on an old tree falls with the ruin of that tree, and through that bad companionship must perish with it.

Whoever in debate quotes authority uses not intellect, but memory.

Why does the eye see a thing more clearly in dreams than the imagination when awake?

In whatever system where the weight attached to the wheel should be the cause of motion of the wheel, without any doubt the center of the gravity of the weight will stop beneath the center of its axle. No instrument devised by human ingenuity, which turns with its wheel, can remedy this effect. Oh, speculators about perpetual motion, how many vain chimeras have you created in the like quest. Go and take you place with the seekers after gold.