Demosthenes

All speech is vain and empty unless it be accompanied by action.

Beware lest in your anxiety to avoid war you obtain a master.

He who confers a favor should at once forget it, if he is not to show a sordid ungenerous spirit. To remind a man of a kindness conferred and to talk of it, is little different from reproach.

Small opportunities are often the beginning of great enterprises.

The fact speak for themselves.

The man who has received a benefit ought always to remember it, but he who has granted it ought to forget the fact at once.