For it is we who must pray for our daily bread, and if He grants it to us, it is only through our labour, our skill and preparation.

All numbers are multiples of one, all sciences converge to a common point, all wisdom comes out of one center, and the number of wisdom is one.

What the eyes perceive in herbs or stones or trees is not yet a remedy; the eyes see only the dross.

The highest degree of a medicine is Love.

The physician must give heed to the region in which the patient lives, that is to say, to its type and peculiarities.

Everything is a drug; it depends on the dose.

Time is a brisk wind, for each hour it brings something new.