Every human being has, like Socrates, an attendant spirit; and wise are they who obey its signals. If it does not always tell us what to do, it always cautions us what not to do.

A human heart can never grow old if it takes a lively interest in the pairing of birds, the reproduction of flowers, and the changing tints of autumn leaves.

I keep working because I am quite sure that no particle of goodness or truth is ever really lost, however appearances may be to the contrary.

Belief in oneself is one of the most important bricks in building any successful venture.

It is right noble to fight with wickedness and wrong; the mistake is in supposing that spiritual evil can be overcome by physical means.

We must not forget that all great revolutions and reformations would look mean and meagre if examined in detail as they occurred at the time.

There have always been a large class of thinkers who deny that the world makes any progress. They say we move in a circle; that evils are never conquered, but only change their forms.