All men make mistakes, but only wise men learn from their mistakes.
After a time, civil servants tend to become no longer servants and no longer civil.
Difficulties mastered are opportunities won.
Never hold discussions with the monkey when the organ grinder is in the room.
We are masters of the unsaid words, but slaves of those we let slip out.
What is the use of living, if it be not to strive for noble causes and to make this muddled world a better place for those who will live in it after we are gone?