Life is short, science is long; opportunity is elusive, experiment is dangerous, judgement is difficult.
The human soul develops up to the time of death.
Wherever the art of Medicine is loved, there is also a love of Humanity.
There is one common flow, one common breathing, all things are in sympathy.
All parts of the body which have a function, if used in moderation and exercised in labors in which each is accustomed, become thereby healthy, well developed and age more slowly, but if unused they become liable to disease, defective in growth and age quickly.
Wherefore the heart and the diaphragm are particularly sensitive, they have nothing to do, however, with the operations of the understanding, but of all these the brain is the cause.