“I was told you either stand or you fall, as long as you know when you walk you holding' hands with a god. That alone can turn the dark to a walk in the park.”

Source: The Peter Principle (1969), p. 63

Cate Blanchett: 'You know you're a pessimist when you win an Oscar and think, "Oh God, I've peaked"', The Guardian, 30 November 2013 http://www.theguardian.com/film/2013/nov/30/cate-blanchett-actor-pessimist-oscar,

Wenn du einen vielbetretenen Weg lange gehst, so gehst du ihn endlich allein.
Source: Aphorisms (1880/1893), p. 28.

Source: Poems

Source: Bad Moon Rising

This quotation was first used in print (and misattributed to Leonardo da Vinci) in a science fiction story published in 1975, The Storms of Windhaven. One of the authors, Lisa Tuttle, remembers that the quote was suggested by science fiction writer Ben Bova, who says he believes he got the quote from a TV documentary narrated by Fredric March, presumably I, Leonardo da Vinci, written by John H. Secondari for the series Saga of Western Man, which aired on 23 February 1965. Bova incorrectly assumed that he was quoting da Vinci. The probable author is John Hermes Secondari (1919-1975), American author and television producer.
Misattributed
Variant: For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.

Revolution (2014)
Context: On the short walk to the front past the others, either bowing or kneeling or whirling or howling, I feel glad that my life is this way; so full of jarring experience. Sometimes you feel that life is full and beautiful, all these worlds, all these people, all these experiences, all this wonder. You never know when you will encounter magic. Some solitary moment in a park can suddenly burst open with a spray of preschool children in high-vis vests, hand in hand; maybe the teacher will ask you for directions, and the children will look at you, curious and open, and you’ll see that they are perfect. In the half-morning half-gray glint, the cobwebs on bushes are gleaming with such radiant insistence, you can feel the playful unknown beckoning. Behind impassive stares in booths, behind the indifferent gum chew, behind the car horns, there is connection.

Variant: You must walk alone to find your soul.
Source: Speak