Sincerity and truth are the basis of every virtue.

No matter what people tell you, words and ideas can change the world.

There is always room at the top.

The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.

The superior man thinks only of virtue; the common man thinks only of comfort.

It's all to do with the training: you can do a lot if you're properly trained.

I would prefer even to fail with honor than win by cheating.

Truth can be stated in a thousand different ways, yet each one can be true.

The unexamined life is not worth living.

Be yourself; everyone else is already taken.

When I give, I give myself.

Work gives you meaning and purpose and life is empty without it.

The great art of life is sensation, to feel that we exist, even in pain.

My dear friend, clear your mind of cant.

I don’t think we are going to become extinct. We are very clever and very resourceful.

In a day, when you don't come across any problems - you can be sure that you are travelling in a wrong path.

You have to dream before your dreams can come true.

A man is but the product of his thoughts. What he thinks, he becomes.

The limits of the possible can only be defined by going beyond them into the impossible.

March on. Do not tarry. To go forward is to move toward perfection. March on, and fear not the thorns, or the sharp stones on life's path.

Life is 10 percent what happens to you and ninety percent how you respond to it.