Sport is a preserver of health.

All excesses are inimical to Nature. It is safer to proceed a little at a time, especially when changing from one regimen to another.

I will give no deadly medicine to any one if asked, nor suggest any such counsel; and in like manner I will not give to a woman a pessary to produce abortion.

Make a habit of two things: to help; or at least to do no harm.

Idleness and lack of occupation tend - nay are dragged - towards evil.

Science is the father of knowledge, but opinion breeds ignorance.

But medicine has long had all its means to hand, and has discovered both a principle and a method, through which the discoveries made during a long period are many and excellent, while full discovery will be made, if the inquirer be competent, conduct his researches with knowledge of the discoveries already made, and make them his starting-point. But anyone who, casting aside and rejecting all these means, attempts to conduct research in any other way or after another fashion, and asserts that he has found out anything, is and has been victim of deception.