It is plain that there is no separate essence called courage, no cup or cell in the brain, no vessel in the heart containing drops or atoms that make or give this virtue; but it is the right or healthy state of every man, when he is free to do that which is constitutional to him to do.
Enlightenment is man's emergence from his self-imposed nonage. Nonage is the inability to use one's own understanding without another's guidance. This nonage is self-imposed if its cause lies not in lack of understanding but in indecision and lack of courage to use one's own mind without another's guidance. Dare to know!
Having courage does not mean that we are unafraid. Having courage and showing courage mean we face our fears. We are able to say, 'I have fallen, but I will get up.'
Those with a high level of confidence may have as many or more weaknesses than those with low self-esteem. The difference is this; instead of dwelling on their handicaps, they compensate for them by dwelling on their strengths.