Past thinking and methods did not prevent world wars. Future thinking must prevent wars.
The only way to escape the corruptible effect of praise is to go on working.
Any fool can know. The point is to understand.
Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution.
I have a dream that one day this nation will rise up and live out the true meaning of its creed: "We hold these truths to be self-evident: that all men are created equal."