Putting your hand into a river, you simultaneously touch the last of what is passing and the first of what is coming.

When Fortune comes, seize her in front with a sure hand, because behind she is bald.

The desire to know is natural to good men.

Those who fall in love with practice without science are like a sailor who enters a ship without a helm or a compass, and who never can be certain whither he is going.

Medicine is the restoration of discordant elements; sickness is the discord of the elements infused into the living body.

Inequality is the cause of all local movements.

I wish to work miracles.