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.

...The world wouldn't be the world, without trouble.

Avoid the precepts of those thinkers whose reasoning is not confirmed by experience.

The knowledge of all things is possible

Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.

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

Of the four elements water is the second in weight and the second in respect of mobility. It is never at rest until it unites with the sea.