It was not by accident that the greatest thinkers of all ages were deeply religious souls. — Max Planck Copy Share Image
Since Socrates and Plato first speculated on the nature of the human mind, serious thinkers through the ages - from Aristotle to… — Eric Kandel Copy Share Image
The highest thinkers of the ages, the seers of the tribes and the nations, have been optimists. — Helen Keller Copy Share Image