"Never give way to melancholy; resist it steadily, for the habit will encroach." — Sydney Smith

Errors, to be dangerous, must have a great deal of truth mingled with them. It is only from this alliance that they can ever obtain an extensive circulation.

Find fault when you must find fault in private, and if possible sometime after the offense, rather than at the time.

Science is his forte, and omniscience his foible.

No man can ever end with being superior who will not begin with being inferior.