Men are not prisoners of fate, but only prisoners of their own minds.
Be frank and explicit. That is the right line to take when you wish to conceal your own mind and to confuse the minds of others.
It is not the strength, but the duration, of great sentiments that makes great men.
Not everything that can be counted counts, and not everything that counts can be counted.
Nothing is softer or more flexible than water, yet nothing can resist it.
Experience keeps a dear school, but fools will learn in no other.
Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.
Peace is not an absence of war, it is a virtue, a state of mind, a disposition for benevolence, confidence, justice.
Thoughts without content are empty, intuitions without concepts are blind.
Where wisdom reigns, there is no conflict between thinking and feeling.
Let no man pull you low enough to hate him.
Don't criticize what you can't understand.
There is nothing more uncommon than common sense.
A man is literally what he thinks.
What can't be cured must be endured.
A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
What you're thinking is what you're becoming.
The road of excess leads to the palace of wisdom.
Our virtues and our failings are inseparable, like force and matter. When they separate, man is no more
Out of suffering have emerged the strongest souls; the most massive characters are seared with scars.
We may encounter many defeats but we must not be defeated.