One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.
The first thing you'll have to do, is the last thing you wished.
The pendulum of the mind oscillates between sense and nonsense, not between right and wrong.
The noblest pleasure is the joy of understanding.
Never do anything when you are in a temper, for you will do everything wrong.
Taste every fruit of every tree in the garden at least once. It is an insult to creation not to experience it fully. Temperance is wickedness.
Where there is anger, there is always pain underneath.
In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.
The only way to get the best of an argument is to avoid it.
Knowledge speaks, but wisdom listens
Each problem that I solved became a rule which served afterwards to solve other problems.
Wise men speak because they have something to say; Fools because they have to say something.
Confidence is contagious. So is lack of confidence.
So many people have this idea: I want to achieve something great or be somebody great. And they neglect the step that leads to greatness. They don't honor this step at this moment because they have this idea of some future moment where they are going to be great.
Let no man pull you low enough to hate him.
A mistake is always forgivable, rarely excusable and always unacceptable.
One new feature or fresh take can change everything.
He who can destroy a thing, can control a thing.
When you judge another, you do not define them, you define yourself.
Tact is the knack of making a point without making an enemy.
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.