Courage to me is doing something daring, no matter how afraid, insecure, intimidated, alone, unworthy, incapable, ridiculed or whatever other paralyzing emotion you might feel. Courage is taking action....no matter what. So you're afraid? Be afraid. Be scared silly to the point you're trembling and nauseous, but do it anyway!
Very few beings really seek knowledge in this world. Mortal or immortal, few really ask. On the contrary, they try to wring from the unknown the answers they have already shaped in their own minds -- justifications, confirmations, forms of consolation without which they can't go on. To really ask is to open the door to the whirlwind. The answer may annihilate the question and the questioner.