The one law that does not change is that everything changes, and the hardship I was bearing today was only a breath away from the pleasures I would have tomorrow, and those pleasures would be all the richer because of the memories of this I was enduring.

Only one who has learned much can fully appreciate his ignorance.

Education is everywhere, prompting one to think, to consider, to remember.

Mountains should not be judged by altitude.

We do not at present educate people to think but, rather, to have opinions, and that is something altogether different.

A parent or a teacher has only his lifetime; a good book can teach forever.

Men strive for peace, but it is their enemies that give them strength, and I think if man no longer had enemies, he would have to invent them, for his strength only grows from struggle.