In one and the same fire, clay grows hard and wax melts.

We only have our nervous system to paint.

Parents who wish to train up their children in the way they should go must go in the way in which they would have their children go.

It is impossible to love and to be wise.

A young man not yet, an elder man not at all.

But men must know, that in this theatre of man's life it is reserved only for God and angels to be lookers on.

Medicine is a science which hath been (as we have said) more professed than laboured, and yet more laboured than advanced: the labour having been, in my judgment, rather in circle than in progression. For I find much iteration, but small addition. It considereth causes of diseases, with the occasions or impulsions; the diseases themselves, with the accidents; and the cures, with the preservation.