It is possible in medicine, even when you intend to do good, to do harm instead. That is why science thrives on actively encouraging criticism rather than stifling it.

I swear, by my life and my love of it, that I will never live for the sake of another man, nor ask another man to live for mine.

Everyone's pedigree merges into everyone else's pedigree. So if you go back far enough, everyone is related.

Prosperity is not without many fears and distastes; adversity not without many comforts and hopes.

I always rewrite each day up to the point where I stopped. When it is all finished, naturally you go over it. You get another chance to correct and rewrite when someone else types it, and you see it clean in type. The last chance is in the proofs. You're grateful for these different chances.