The greatest deception men suffer is from their own opinions
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.
Lightning makes no sound until it strike
Lectures which really teach will never be popular; lectures which are popular will never really teach
You could not handle me even if I came with instructions
Men are driven by two principal impulses, either by love or by fear
As if you could kill time without injuring eternity
Radium is not to enrich any one. It is an element; it is for all people
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