Humanity

"We all do better when we work together. Our differences do matter, but our common humanity matters more."
"It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err."
"Freedom is not worth having if it does not include the freedom to make mistakes."
"A single death is a tragedy; a million deaths is a statistic."
"The only thing that scares me more than space aliens is the idea that there aren't any space aliens. We can't be the best that creation has to offer. I pray we're not all there is. If so, we're in big trouble."
"Indifference and neglect often do much more damage than outright dislike."
"That's the point. Every kind of animal thinks its own kind of animal is wonderful. So people getting married think they're wonderful, and that they're going to have a baby-- that's wonderful, when actually they're as ugly as rhinoceroses. Just because we think we're so wonderful doesn't mean we really are. We could be really terrible animals and just never admit it because it would hurt so much."
"Don’t let us forget that the causes of human actions are usually immeasurably more complex and varied than our subsequent explanations of them."
"Nobody realizes that some people expend tremendous energy merely to be normal."
"If it’s true that our species is alone in the universe, then I’d have to say the universe aimed rather low and settled for very little."
"Be ashamed to die until you have won some victory for humanity."
"Unless one lives and loves in the trenches, it is difficult to remember that the war against dehumanization is ceaseless."