Strength of mind rests in sobriety; for this keeps your reason unclouded by passion.
Reason is immortal, all else mortal.
Do not say a little in many words but a great deal in a few.
Do not talk a little on many subjects, but much on a few.
The oldest, shortest words - 'yes' and 'no' - are those which require the most thought.
It is difficult to walk at one and the same time many paths of life.