This drink has a magical power. It strengthens the weak, and revives those who have fainted. Those tired after work and physical activity can return their life forces by this drink much sooner than by nourishment. ... It works as a diuretic, an appetizer, an antitoxin.

Yet man does recognise himself [as an animal]. But I ask you and the whole world for a generic differentia between man and ape which conforms to the principles of natural history, I certainly know of none... If I were to call man ape or vice versa, I should bring down all the theologians on my head. But perhaps I should still do it according to the rules of science.

Blessed be the Lord for the beauty of summer and spring, for the air, the water, the verdure, and the song of birds.

The plant kingdom covers the entire earth, offering our senses great pleasure and the delights of summer.

If you do not know the names of things, the knowledge of them is lost, too.

A professor can never better distinguish himself in his work than by encouraging a clever pupil, for the true discovers are among them, as comets amongst the stars.

To live by medicine is to live horribly.