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!
People talk of the courage of convictions, but in actual life a man's duty to his family may make a rigid course seem a selfish indulgence of his own righteousness.
We have come out of the time when obedience, the acceptance of discipline, intelligent courage and resolution were most important, into that more difficult time when it is a man's duty to understand his world rather than simply fight for it.
This is one of the stout-hearted old warriors: he is angry with civilization because he supposes that its aim is to make all goodthings--honors, treasures, beautiful women--accessible even to cowards.
Great spirits have always found violent opposition from mediocre minds. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices but honestly and courageously uses his intelligence.
I will never forget that the only reason I'm standing here today is because somebody, somewhere stood up for me when it was risky. Stood up when it was hard. Stood up when it wasn't popular. And because that somebody stood up, a few more stood up. And then a few thousand stood up. And then a few million stood up. And standing up, with courage and clear purpose, they somehow managed to change the world.
Sta come torre ferma, che non crolla
Giammai la cima per soffiar de' venti.
Be steadfast as a tower that doth not bend its stately summit to the tempest's shock.
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.