Nearly all great civilizations that perished did so because they had crystallized, because they were incapable of adapting themselves to new conditions, new methods, new points of view. It is as though people would rather die than change.

We must do that which we think we cannot.

...conservation of land and conservation of people frequently go hand in hand.

Caring comes from being able to put yourself in the position of the other person.

Do one thing every day that scares you.

Hate and force cannot be in just a part of the world without having an effect on the rest of it.

No one can insult you without your permission.