Everything excellent is as difficult as it is rare.
Most of what matters in our lives takes place in our absence.
What's done can't be undone.
Having a great intellect is no path to being happy.
Almost every wise saying has an opposite one, no less wise, to balance it.
It is hard to fight desire; but to control it is the sign of a reasonable man.
One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.
Every act of creation is first an act of destruction.
A single lie destroys a whole reputation of integrity.
Life's battles don't always go to the stronger or faster man. But sooner or later, the man who wins is the man who thinks he can.
Accuracy is the twin brother of honesty; inaccuracy, of dishonesty.
The most courageous act is still to think for yourself. Aloud.
Obsession is the wellspring of genius and madness.
Learned we may be with another man's learning: we can only be wise with wisdom of our own.
The absent are never without fault, nor the present without excuse.
Only from the heart can you touch the sky.
Intelligence is the ability to adapt to change.
Where wisdom reigns, there is no conflict between thinking and feeling.
Half the world is composed of people who have something to say and can't, and the other half who have nothing to say and keep on saying it.
It is easy to be brave at a safe distance.
Most of us have far more courage than we ever dreamed possible