Friedrich Nietzsche
The individual has always had to struggle to keep from being overwhelmed by the tribe. If you try it, you will be lonely often, and sometimes frightened. But no price is too high to pay for the privilege of owning yourself.
There are various eyes. Even the Sphinx has eyes: and as a result there are various truths, and as a result there is no truth.
The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.
God is dead. God remains dead. And we have killed him. Yet his shadow still looms. How shall we comfort ourselves, the murderers of all murderers? What was holiest and mightiest of all that the world has yet owned has bled to death under our knives; who will wipe this blood off us? What water is there for us to clean ourselves?
There are horrible people who, instead of solving a problem, tangle it up and make it harder to solve for anyone who wants to deal with it. Whoever does not know how to hit the nail on the head should be asked not to hit it at all.
Those who cannot understand how to put their thoughts on ice should not enter into the heat of debate.