Let no man pull you low enough to hate him.
No one can make you feel inferior without your consent.
Wonder is the beginning of wisdom.
Be silent or let thy words be worth more than silence.
There are no eternal facts, as there are no absolute truths.
It is hard to fight desire; but to control it is the sign of a reasonable man.
Think no vice so small that you may commit it, and no virtue so small that you may over look it.
Learned we may be with another man's learning: we can only be wise with wisdom of our own.
The greatest minds are capable of the greatest vices as well as of the greatest virtues.
Early to bed and early to rise, Makes a man healthy, wealthy, and wise.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
The ultimate authority must always rest with the individual's own reason and critical analysis.
The cure for pain is in the pain.
Every act of creation is first an act of destruction.
Almost every wise saying has an opposite one, no less wise, to balance it.
Don't criticize what you can't understand.
Intellectuals solve problems, geniuses prevent them.
Your visions will become clear only when you can look into your own heart. Who looks outside, dreams; who looks inside, awakes.
It is a wise man that does know the contented man is never poor, whilst the discontented man is never rich.
If you are neutral in situations of injustice, you have chosen the side of the oppressor.
Desire is poverty. Desire is the greatest impurity of the mind. Desire is the motive force for action. Desire in the mind is the real impurity. Even a spark of desire is a very great evil.