“Learn their lesson, that if you would teach people you first must capture their interest with news; that your service rather than your sermons must be your claim upon their attention; that what you say must be simple, and brief, and above all sincere — the unmistakable voice of true regard and affection.”
On the teachings of Jesus, in Ch. 5 : His Advertisements
The Man Nobody Knows (1924)
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Bruce Fairchild Barton 15
American author, politician and advertising executive 1886–1967Related quotes
Methods of Mathematics Applied to Calculus, Probability, and Statistics (1985)

41
Ki Sayings (2003)
Context: You must not think of what you learned as belonging to you. Your learning was only possible because of the people who taught you. If you forget this, before you know it you fall under the illusion that you are the only one who can do it, or the only one who understands. This is called being full of yourself. It is wrong to think, ‘I am strong’, because this strength is nothing but weakness turned inside out. You must think how to act within universal principles.

“Each time you learn something new you must readjust the whole framework of your knowledge”

Source: Getting Things Done: The Art of Stress-Free Productivity (2001), Chapter 1