One Does Not Know -

Spirit Is The Life That Itself Cuts Into Life: With Its Own Torment It Increases Its Own Knowledge. Did You Already Know That?

He Who Has Attained The Freedom Of Reason To Any Extent Cannot, For A Long Time, Regard Himself Otherwise Than As A Wanderer On The Face Of The Earth - And Not Even As A Traveler Towards A Final Goal, For There Is No Such Thing. But He Certainly Wants To Observe And Keep His Eyes Open To Whatever Actually Happens In The World; Therefore He Cannot Attach His Heart Too Firmly To Anything Individual; He Must Have In Himself Something Wandering That Takes Pleasure In Change And Transitoriness.

Convictions Are Prisons.

Brave People May Be Persuaded To An Action By Representing It As Being More Dangerous Than It Really Is.

[heraclitus Had] A Regal Air Of Certainty.