You ask me if I keep a notebook to record my great ideas. I’ve only ever had one. – Albert Einstein
Pure mathematics is, in its way, the poetry of logical ideas. – Albert Einstein
Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone. – Albert Einstein
Wit is the sudden marriage of ideas which before their union were not perceived to have any relation. – Mark Twain
You do things when the opportunities come along. I’ve had periods in my life when I’ve had a bundle of ideas come along, and I’ve had long dry spells. If I get an idea next week, I’ll do something. If not, I won’t do a damn thing. – Warren Buffett
To compel a man to furnish funds for the propagation of ideas he disbelieves and abhors is sinful and tyrannical. – Thomas Jefferson
It is always better to have no ideas than false ones; to believe nothing, than to believe what is wrong. – Thomas Jefferson
We are not afraid to entrust the American people with unpleasant facts, foreign ideas, alien philosophies, and competitive values. For a nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people. – John F. Kennedy
Khrushchev reminds me of the tiger hunter who has picked a place on the wall to hang the tiger’s skin long before he has caught the tiger. This tiger has other ideas. – John F. Kennedy
“I don’t know exactly where ideas come from. It’s just a matter of us figuring out how to receive the ideas waiting to be heard.” – Jim Henson
Great minds discuss ideas; average minds discuss events; small minds discuss people. – Eleanor Roosevelt
Fashion is not something that exists in dresses only. Fashion is in the sky, in the street, fashion has to do with ideas, the way we live, what is happening. – Coco Chanel
It is not once nor twice but times without number that the same ideas make their appearance in the world. – Aristotle
College isn’t the place to go for ideas. – Helen Keller
Or heritage and ideals, our code and standards – the things we live by and teach our children – are preserved or diminished by how freely we exchange ideas and feelings. – Walt Disney
At Microsoft there are lots of brilliant ideas but the image is that they all come from the top – I’m afraid that’s not quite right. – Bill Gates
Enthusiasm is the yeast that makes your hopes shine to the stars. Enthusiasm is the sparkle in your eyes, the swing in your gait. The grip of your hand, the irresistible surge of will and energy to execute your ideas. – Henry Ford
Great ideas originate in the muscles. – Thomas A. Edison
God screens us evermore from premature ideas. – Ralph Waldo Emerson
People today are still living off the table scraps of the sixties. They are still being passed around – the music and the ideas. – Bob Dylan
The ideas I stand for are not mine. I borrowed them from Socrates. I swiped them from Chesterfield. I stole them from Jesus. And I put them in a book. If you don’t like their rules, whose would you use? – Dale Carnegie
Tell me what you’re laughing at and I shall tell you who you are. – Goethe 
