The right dose differentiates a poison from a remedy
That which lives on reason lives against the spirit.
All drugs are poisons the benefit depends on the dosage.
The art of medicine cannot be inherited, nor can it be copied from books
Nature also forges man, now a gold man, now a silver man, now a fig man, now a bean man.
Every physician must be rich in knowledge, and not only of that which is written in books; his patients should be his book, they will never mislead him.