Fools rush in where angels fear to tread
— Alexander Pope in his short writing An Essay On Criticism
If they are so eager to die, and will not heed the advice of superiors, then let them rush headlong into the jaws of the lion. We can only hope some of them get caught in its throat.
All men are afraid in battle. The coward is the one who lets his fear overcome his sense of duty. Duty is the essence of manhood.
— General George S. Patton
Courage isn't just a matter of not being afraid. It's being afraid and doing what you have to do anyway.
—The Third Doctor, Doctor Who, Planet of the Daleks
Foolish are those who fear nothing, yet claim to know everything.
He doesn't know when he's beat, this boy... he doesn't know when he's winning either... he doesn't have any sort of sensory apparatus at all...
Tsze-lu asked, "If you had the conduct of the armies of a great State, whom would you have to act with you?"
Confucius replied, "I would not have him to act with me who will unarmed attack a tiger, or cross a river without a boat, dying without any regret. My associate must be the man who proceeds to action full of thoughtfulness, who is fond of carefully laying out his plans, and then carries them into execution."
"I will have no man in my boat," said Starbuck, "who is not afraid of a whale." By this he seemed to mean, not only that the most reliable and useful courage was that which arises from the fair estimation of the encountered peril, but that an utterly fearless man is a far more dangerous comrade than a coward.
Mei: Not knowing what fear is isn't bravery; that's just being an idiot.
Heidi: Like you.
Mei: Right! Like me! I'm an expert at doing stupid things which aren't actually that brave! I have life-long experience at it!