You can have no dominion greater or less than that over yourself.

It's easier to resist at the beginning than at the end.

It is better to imitate ancient than modern work.

Each man is always in the middle of the surface of the earth and under the zenith of his own hemisphere, and over the centre of the earth.

There is no object so large but that at a great distance from the eye it does not appear smaller than a smaller object near.

I have found that, in the composition of the human body as compared with the bodies of animals, the organs of sense are duller and coarser. Thus, it is composed of less ingenious instruments, and of spaces less capacious for receiving the faculties of sense.