In complex trains of thought signs are indispensable.

Books minister to our knowledge, to our guidance, and to our delight, by their truth, their uprightness, and their art.

Science is the systematic classification of experience.

Originality is independence, not rebellion; it is sincerity, not antagonism.

It is unhappily true that much insincere Literature and Art, executed solely with a view to effect, does succeed by deceiving the public.

No man ever made a great discovery without the exercise of the imagination.

We must never assume that which is incapable of proof.

The true function of philosophy is to educate us in the principles of reasoning and not to put an end to further reasoning by the introduction of fixed conclusions.

Insincerity is always weakness; sincerity even in error is strength.

To write much, and to write rapidly, are empty boasts. The world desires to know what you have done, and not how you did it.

Good writers are of necessity rare.

Three carefully stringed words are worth more than a book of gibberish. It's not the word count but the impact of those words that counts.

Surround yourself with people who will believe in you, challenge you and encourage you.

But I was also told to hold doors for women and children, to shake hands with a firm grip, to remember people's names, and to always give the customer a little more than expected.

I guess I'll retire someday if I live that long.

Don't be disquieted in time of adversity. Be firm with dignity and self-reliant with vigor.

You can't have responsibility and you can't have us living up to our ideals unless it's based on a fairly common acceptance of truth, of what is true - what is the truth here?

Yes, I'm back," he said, "And look who I ran into." Horace grinned at him. "i hope you ran into him hard." "As hard as I could.

I believe that movements to suppress wrongs can be carried out under the protection of our flag.

I'm unstuck in time. Also, I juggle like mad and have made myself efficient.

The American president just won the nobel peace prize, by any reasonable measure, all Americans should be proud.