The heart has its reasons which reason knows not.

Those who know, do. Those that understand, teach.

The most certain sign of wisdom is cheerfulness.

Learning and wisdom are superfluities, the surface glitter merely, but it is the heart that is the seat of all power.

The most courageous act is still to think for yourself. Aloud.

Attitude, not Aptitude, determines Altitude.

Stubborn and ardent clinging to one's opinion is the best proof of stupidity.

He alone is free who lives with free consent under the entire guidance of reason.

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.

The one you buy will be the only one that doesn't work.

Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

There is nothing more uncommon than common sense.

There's no sense in being precise when you don't even know what you're talking about.

To avoid criticism say nothing, do nothing, be nothing.

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.

Rest satisfied with doing well, and leave others to talk of you as they please.

Early to bed and early to rise, Makes a man healthy, wealthy, and wise.

Nobody made a greater mistake than he who did nothing because he could do only a little.

Wisdom... comes not from age, but from education and learning.