Just as a well-filled day brings blessed sleep, so a well-employed life brings a blessed death.

The length of a man's outspread arms is equal to his height.

Nature is so delightful and abundant in its variations that among trees of the same kind there would not be found one which nearly resembles another, and not only the plants as a whole, but among their branches, leaves, and fruit, will not be found one which is precisely like another.

Strive to preserve your health; and in this you will better succeed in proportion as you keep clear of the physicians, for their drugs are a kind of alchemy concerning which there are no fewer books than there are medicines.

Fire destroys falsehood, that is sophistry, and restores truth, driving out darkness.

Whatever you do in life, if you want to be creative and intelligent, and develop your brain, you must do everything with the awareness that everything, in some way, connects to everything else.

He who fears dangers will not perish by them.