Nothing can be loved or hated unless it is first understood
Italian polymath of the Renaissance whose areas of interest included invention, drawing, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography.
No great discovery was ever made without a bold guess
Every man must decide whether he will walk in the light of creative altruism or in the darkness of destructive selfishness
If you are irritated by every rub, how will your mirror be polished?
Lectures which really teach will never be popular; lectures which are popular will never really teach
Integrity is doing the right thing when nobody’s watching, and doing as you say you would do
As a writer, you should not judge, you should understand
Inventor, Scientist
Author, Inventor, Philosopher, Scientist
Historian, Priest, Theologian
Historian, Philosopher, Writer
Author, Scientist
Astronomer, Philosopher, Scientist
Philosopher, Scientist
Artist, Playwright, Poet
Inventor, Scientist
Comedian, Historian, Philosopher
Scientist
Philosopher, Scientist
Inventor, Scientist
Philosopher, Scientist
Philosopher, Poet, Scientist
Inventor, Scientist, Writer
Historian, Philosopher, Poet
Historian, Philosopher, Poet
Inventor, Scientist
Historian, Philosopher
Scientist, Writer
Inventor, Scientist, Writer
Inventor, Politician, Scientist, Writer
Philosopher, Scientist
Scientist
