True knowledge lies in knowing how to live.
The sole advantage of power is that you can do more good.
All victories breed, and that over your superior is foolish or fatal.
Let the first impulse pass, wait for the second.
For a thing to remain undone nothing more is needed than to think of it done.
There are friendships merely for pleasure, some for the exchange of ideas. Rarest are those friends of one's inmost self.