One of the truest tests of integrity is its blunt refusal to be compromised.
Just remember, once you're over the hill you begin to pick up speed.
There is geometry in the humming of the strings. There is music in the spacing of the spheres.
The one you buy will be the only one that doesn't work.
Science may set limits to knowledge, but should not set limits to imagination.
True knowledge lies in knowing how to live.
The trouble with most of us is that we would rather be ruined by praise than saved by criticism.
No one can make you feel inferior without your consent.
It is a wise man that does know the contented man is never poor, whilst the discontented man is never rich.
The first method for estimating the intelligence of a ruler is to look at the men he has around him.
Knowledge speaks, but wisdom listens
It is easy to be brave at a safe distance.
Courage, above all things, is the first quality of a warrior.
Don't criticize what you can't understand.
All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident.
The noblest pleasure is the joy of understanding.
Men build too many walls and not enough bridges.
It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.
Do your little bit of good where you are; it's those little bits of good put together that overwhelm the world.
The absent are never without fault, nor the present without excuse.
Nothing fixes a thing so intensely in the memory as the wish to forget it.