Who said “Danger, the spur of all great minds.”?

“Let the fear of a danger be a spur to prevent it: He that fears otherwise, gives advantage to the danger.”

“Avoiding danger is no safer in the long run than outright exposure. The fearful are caught as often as the bold.”

“Every man is his own chief enemy.”

“Between the anvil and the hammer.”

“When danger approaches, sing to it.”

“Pure innovation is more gross than error.”

“Promise is most given when the least is said.”

“Let no man under value the price of a virtuous woman's counsel.”

“And let a scholar all earth's volumes carry, he will be but a walking dictionary: a mere articulate clock.”

“They're only truly great who are truly good.”