You can't have a light without a dark to stick it in.
No great improvements in the lot of mankind are possible until a great change takes place in the fundamental constitution of their modes of thought.
To avoid situations in which you might make mistakes may be the biggest mistake of all.
An honest politician is one who, when he is bought, will stay bought.
Under democracy one party always devotes its chief energies to trying to prove that the other party is unfit to rule - and both commonly succeed, and are right.
It's a dangerous business going out your front door.
If one sticks too rigidly to one's principles, one would hardly see anybody.