Action may not always bring happiness; but there is no happiness without action.
Benjamin Disraeli, 1804 – 1881
Good questions outrank easy answers.
Paul Samuelson, 1915 – 2009
If I could explain it to the average person, I wouldn’t have been worth the Nobel Prize.
Richard Feynman, 1918 – 1988
The possession of facts is knowledge, the use of them is wisdom.
Thomas Jefferson, 1743 – 1826
As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality.
Albert Einstein, 1879 – 1955