In any moment of decision, the best thing you can do is the right thing. The worst thing you can do is nothing.

It is man that makes truth great, not truth that makes man great.

There are no limitations to the mind except those we acknowledge.

Tell the truth. Sing with passion. Work with laughter. Love with heart. 'Cause that's all that matters in the end.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact

If you only read the books that everyone else is reading, you can only think what everyone else is thinking.

And this sensitivity will create new friendships for you - friendships with trees, with birds, with animals, with mountains, with rivers, with oceans, with stars. Life becomes richer as love grows.

Common sense is in spite of, not as the result of education.

Do not reveal what you have thought upon doing, but by wise council keep it secret being determined to carry it into execution.

Whatever it is you're seeking won't come in the form you're expecting.

You cannot truly listen to anyone and do anything else at the same time.

In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.

Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy.

If a man could have half of his wishes, he would double his troubles.

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

Better mad with the rest of the world than wise alone.

We never see ourselves as others see us.

The greatest power we have is the power of choice.

And no one will listen to us until we listen to ourselves.

There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it.

The ultimate authority must always rest with the individual's own reason and critical analysis.