Undertake not what you cannot perform, but be careful to keep your promise. .
——George Washington
I might say that success is won by three things: first, effort; second, more effort; third, still more effort
-Thomas Hardy
Life is not long, and too much of it must not pass in idle deliberation on how it shall be spent.
——Samuel Johnson
Joys are our wings, sorrows are our spurs.
——Richter
This communicating of a man's self to his friend works two contrary effects, for it redoubleth joys, and cutteth grief in half.
—— Francis Bacon