Do not say a little in many words but a great deal in a few.
The oldest, shortest words - "yes' and "no" - are those which require the most thought.
If there be light, then there is darkness; if cold, heat; if height, depth; if solid, fluid; if hard, soft; if rough, smooth; if calm, tempest; if prosperity, adversity; if life, death.
Rest satisfied with doing well, and leave others to talk of you as they will
A thought is an idea in transit.
Don't take it on yourself. Forget now. Live.
(October 17, 1915 - February 10, 2005)
Memory is the mother of all wisdom
Don't argue for other people's weaknesses. Don't argue for your own. When you make a mistake, admit it, correct it, and learn from it / immediately.
Stephen R. Covey