The man of knowledge must be able not only to love his enemies but also to hate his friends.

Only a true best friend can protect you from your immortal enemies.

You realize that our mistrust of the future makes it hard to give up the past.

I loved her against reason, against promise, against peace, against hope, against happiness, against all discouragement that could be.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.