Nobody has the power to take two steps together; you can take only one step at a time.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
Wisdom is not the product of schooling, but of the lifelong attempt to acquire it.
In any moment of decision, the best thing you can do is the right thing. The worst thing you can do is nothing.
A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools.
If you're happy, don't worry you'll get over it.
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.
The greatest deception men suffer is from their own opinions.
The experience gathered from books, though often valuable,is but the nature of learning whereas the experience gained from actual life is of the nature of wisdom.
Immoderate desire is the mark of a child, not a man.
Stupidity is a talent for misconception.
Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating.
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
What's done can't be undone.
When I stand before God at the end of my life, I would hope that I would not have a single bit of talent left, and could say, 'I used everything you gave me'.
Muddy water is best cleared by leaving it alone.
Peace is not an absence of war, it is a virtue, a state of mind, a disposition for benevolence, confidence, justice.
Almost every wise saying has an opposite one, no less wise, to balance it.
A wise man can learn more from a foolish question than a fool can learn from a wise answer.
If we do not lay out ourselves in the service of mankind whom should we serve?
What can't be cured must be endured.