A mistake is always forgivable, rarely excusable and always unacceptable.
Having a great intellect is no path to being happy.
The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.
Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.
An understanding of the natural world is a source of not only great curiosity, but great fulfilment.
Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful.
Adapt what is useful, reject what is useless, and add what is specifically your own.
Not everything that can be counted counts, and not everything that counts can be counted.
There's no sense in being precise when you don't even know what you're talking about.
If you place your head in a lion's mouth, then you cannot complain one day if he happens to bite it off.
Empty pockets never held anyone back. Only empty heads and empty hearts can do that.
It is not enough to have a good mind; the main thing is to use it well.
Nothing is as easy as it looks.
And no one will listen to us until we listen to ourselves.
Nobody made a greater mistake than he who did nothing because he could do only a little.
Stubborn and ardent clinging to one's opinion is the best proof of stupidity.
At the center of your being you have the answer; you know who you are and you know what you want.
You want a love which is born out of meditation, not born out of the mind.
Thoughts without content are empty, intuitions without concepts are blind.
It is neither good nor bad, but thinking makes it so.
Don't criticize what you don't understand, son. You never walked in that man's shoes.