He that flings dirt at another dirtieth himself the most.

Every act of conscious learning requires the willingness to suffer an injury to one's self-esteem. That is why young children, before they are aware of their own self-importance, learn so easily . . .

A barbarous practice, the inconsistency, folly, and injury of which no words can sufficiently describe.

[Condemning the use of mercurial medicines.]

If you saw what I did plus the MRI scan, that's not an acute injury from him just getting back.

In fair weather prepare for foul.

It is more difficult to praise rightly than to blame.