Gravity is only the bark of wisdom's tree; but it preserves it
Boredom is the root of all evil - the despairing refusal to be oneself.
It is neither good nor bad, but thinking makes it so.
No matter how much suffering you went through, you never wanted to let go of those memories.
Destiny is not a passive agent that lies in the lap of the Gods, but is an active instrument that lies in your own hands to shape as you will.
How often I found where I should be going only by setting out for somewhere else.
I hear and I forget. I see and I remember. I do and I understand.
The ethos of redemption is realized in self-mastery, by means of temperance, that is, continence of desires.
Thoughts without content are empty, intuitions without concepts are blind.
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.
Those who cannot work with their hearts achieve but a hollow, half-hearted success that breeds bitterness all around.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
Nothing fixes a thing so intensely in the memory as the wish to forget it.
There are no limitations to the mind except those we acknowledge.
The noblest pleasure is the joy of understanding.
Stubborn and ardent clinging to one's opinion is the best proof of stupidity.
Man is not the creature of circumstances, Circumstances are the creatures of men.
Men become wise just as they become rich, more by what they save than by what they receive.
A friend to all is a friend to none
Immoderate desire is the mark of a child, not a man.
If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem.