There are no eternal facts, as there are no absolute truths.

Go wherever the facts lead.

Facts are better than dreams.

United wishes and goodwill cannot overcome brute facts.

It is better to understand a part of truth and apply it to our lives than to understand nothing at all and flounder helplessly in a vain attempt to pierce the mystery of existence.

As fear is a close companion to falsehood, so truth follows fearlessness.