Think no vice so small that you may commit it, and no virtue so small that you may over look it.

Your visions will become clear only when you can look into your own heart. Who looks outside, dreams; who looks inside, awakes.

We must live together as brothers or perish together as fools.

All differences in this world are of degree, and not of kind, because oneness is the secret of everything.

Circumstances do not make a man, they reveal him.

Think globally, act locally.

Choose rather to be strong of soul than strong of body.

I don't know, I don't care, and it doesn't make any difference.

The very essence of instinct is that it's followed independently of reason.

Empty pockets never held anyone back. Only empty heads and empty hearts can do that.

If we do not lay out ourselves in the service of mankind whom should we serve?

All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.

No one cares how much you know, until they know how much you care

Act as if the maxim of your action were to become through your will a general natural law

Mistakes are always forgivable, if one has the courage to admit them.

Unfortunately, the clock is ticking, the hours are going by. The past increases, the future recedes. Possibilities decreasing, regrets mounting.

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

Great acts are made up of small deeds.

Colorless green ideas sleep furiously

Obsession is the wellspring of genius and madness.

Between stimulus and response there is a space. In that space is our power to choose our response. In our response lies our growth and our freedom.