Man is least himself when he talks in his own person. Give him a mask, and he will tell you the truth.
Above all, don't lie to yourself. The man who lies to himself and listens to his own lie comes to a point that he cannot distinguish the truth within him, or around him, and so loses all respect for himself and for others. And having no respect he ceases to love.
Here's all you have to know about men and women: women are crazy, men are stupid. And the main reason women are crazy is that men are stupid.
When I despair, I remember that all through history the way of truth and love have always won. There have been tyrants and murderers, and for a time, they can seem invincible, but in the end, they always fall. Think of it--always.
The truth." Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution.