We are all either fools or undiscovered geniuses.
(Bonnie Lin)

I do not think much of a man who is not wiser today than he was yesterday.
(Abraham Lincoln)

If you once forfeit the confidence of your fellow citizens, you can never regain their respect and esteem. You may fool all of the people some of the time; you can even fool some of the people all the time; but you can't fool all of the people all of the time.
(Abraham Lincoln)

Know thyself.
(Socrates)

Every man gets a narrower and narrower field of knowledge in which he must be an expert in order to compete with other people. The specialist knows more and more about less and less and finally knows everything about nothing.
(Konrad Lorenz)

A love affair with knowledge will never end in heartbreak.
(Michael Garrett Marino)

If written directions alone would suffice, libraries wouldn't need to have the rest of the universities attached.
(Judith Martin, "Miss Manners" columnist and author)

We are drowning in information, but starved for knowledge.
(John Naisbilt)

I do not know what I may appear to the world; but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
(Isaac Newton, Brewster's Memoirs of Newton. Vol. ii. Chap. xxvii.)

You can lead a horticulture but you can't make her think.
(Dorothy Parker)