“To know you are ignorant is the beginning of wisdom,” Viviane said. “Then, when you begin to learn, you will not have to forget all the things you think you know.”

Source: Winesburg, Ohio

Source: Gone with the Wind

Source: Dandelion Wine (1957), p. 142
Context: “I don’t know,” he admitted.
“Well.” She started pouring tea. “To start things off, what do you think of the world?”
“I don’t know anything.”
“The beginning of wisdom, as they say. When you’re seventeen you know everything. When you’re twenty-seven if you still know everything you’re still seventeen.”
“You seem to have learned quite a lot over the years.”
“It is the privilege of old people to seem to know everything. But it’s an act and a mask, like every other act and mask. Between ourselves, we old ones wink at each other and smile, saying, How do you like my mask, my act, my certainty? Isn’t life a play? Don’t I play it well?”
They both laughed quietly.

"Fifth Talk in The Oak Grove, 11 June 1944" http://www.jkrishnamurti.org/krishnamurti-teachings/view-text.php?tid=173&chid=4529&w=%22To+understand+oneself+requires+patience%22&s=Text, J. Krishnamurti Online, JKO Serial No. 440611, Vol. III, p. 219
Posthumous publications, The Collected Works
Context: To understand oneself requires patience, tolerant awareness; the self is a book of many volumes which you cannot read in a day, but when once you begin to read, you must read every word, every sentence, every paragraph for in them are the intimations of the whole. The beginning of it is the ending of it. If you know how to read, supreme wisdom is to be found.

Variant: Real courage is when you know you're licked before you begin, but you begin anyway and see it through no matter what.
Source: To Kill a Mockingbird

Source: This Is How You Lose Her

Kasich: U.S. Has To Destroy ISIS on The Ground, "The Longer We Wait, The More Costly It Will Be" http://www.realclearpolitics.com/video/2015/12/06/kasich_us_has_to_destroy_isis_on_the_ground_the_longer_we_wait_the_more_costly_it_will_be.html, 6 December 2015 Captain Green is the ruler of the universe.

Variant: It's quite an undertaking to start loving somebody. You have to have energy, generosity, blindness. There is even a moment right at the start where you have to jump across an abyss: if you think about it you don't do it.
Source: Nausea (1938)
Context: I know. I know that I shall never again meet anything or anybody who will inspire me with passion. You know, it's quite a job starting to love somebody. You have to have energy, generosity, blindness. There is even a moment, in the very beginning, when you have to jump across a precipice: if you think about it you don't do it. I know I'll never jump again.

Source: Homily of Most. Rev. Honesto Ongtioco, DD at the Mass of the Holy Spirit https://lst.edu/articles/homily-of-most-rev-honesto-ongtioco-dd-at-the-mass-of-the-holy-spirit-held-on-august-26-2015/ (August 26, 2015)