“Curiosity is the one thing invincible in Nature.”
“People say: idle curiosity. The one thing that curiosity cannot be is idle.”
“It is one thing to mortify curiosity, another to conquer it. ”
“A sense of curiosity is nature's original school of education.”
“Upon the one thing every writer absolutely must have, and that is intellectual curiosity.”
“His dreams were the natural reflex of hope and redeemed curiosity.”