It is an acknowledged fact that we perceive errors in the work of others more readily than in our own.

I am not poor. Poor are those who desire many things.

Patience serves as a protection against wrongs as clothes do against cold. For if you put on more clothes as the cold increases, it will have no power to hurt you. So in like manner you must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.

The sun gives spirit and life to the plants and the earth nourishes them with moisture.

O speculators about perpetual motion, how many vain chimeras have you created in the like quest? Go and take your place with the seekers after gold.

Avoid studies of which the result dies with the worker.

The art of procreation and the members employed therein are so repulsive, that if it were not for the beauty of the faces and the adornments of the actors and the pent-up impulse, nature would lose the human species.