Self-Esteem
"To live, man must hold three things as the supreme and ruling values of his life:
Reason — Purpose — Self-esteem.
Reason, as his only tool of knowledge
Purpose, as his choice of the happiness which that tool must proceed to achieve
Self-esteem, as his inviolate certainty that his mind is competent to think and his person is worthy of happiness, which means: is worthy of living."
- Ayn Rand
Every act of man’s life has to be willed; the mere act of obtaining or eating his food implies that the person he preserves is worthy of being preserved; every pleasure he seeks to enjoy implies that the person who seeks it is worthy of finding enjoyment. He has no choice about his need of self-esteem, his only choice is the standard by which to gauge it. And he makes his fatal error when he switches this gauge protecting his life into the service of his own destruction, when he chooses a standard contradicting existence and sets his self-esteem against reality." - Ayn Rand
Read more about Self-Esteem @: Ayn Rand Lexicon
Self-Defense
If some “pacifist” society renounced the retaliatory use of force, it would be left helplessly at the mercy of the first thug who decided to be immoral. Such a society would achieve the opposite of its intention: instead of abolishing evil, it would encourage and reward it. - Ayn Rand
Just as an individual has the right of self-defense, so has a free country if attacked.
But this does not give its government the right to draft men into military service
which is the most blatantly statist violation of a man’s right to his own life.
- Ayn Rand
Read more about Self-Defense @ Ayn Rand Lexicon