“Never forgive, never forget. Do it once and do it right. You reap what you sow. Plans go to hell as soon as the first shot is fired. Protect and serve. Never off duty.”

Part V, Ch. 3 : 3rd Public Talk Madras 14th January 1968 &quot;The Sacred&quot; http://www.jiddu-krishnamurti.net/en/awakening-of-intelligence/1968-01-14-jiddu-krishnamurti-awakening-of-intelligence-the-sacred <br class="br">1970s, The Awakening of Intelligence (1973) <br class="br">Context: One can go on endlessly reading, discussing, piling up words upon words, without ever doing anything about it. It is like a man that is always ploughing, never sowing, and therefore never reaping. Most of us are in that position. And words, ideas, theories, have become much more important than actual living, which is acting, doing. I do not know if you have ever wondered why, throughout the world, ideas, formulas, concepts, have tremendous significance, not only scientifically but also theologically.

Source: God Help the Child

Culture
1860s, The Conduct of Life (1860)
Variant: You cannot do a kindness too soon, for you never know how soon it will be too late.

Success.
Bartlett's Familiar Quotations (1919)

Saying published anonymously in The Dayspring, Vol. 10 (1881) by the Unitarian Sunday-School Society, and quoted in Life and Labor (1887) by Smiles; this is most often attributed to George Dana Boardman, at least as early as 1884, but also sometimes attributed to William Makepeace Thackeray as early as 1891, probably because in in Life and Labor Smiles adds a quote by Thackeray right after this one, to Charles Reade in 1903, and to William James as early as 1906, because it appears in his Principles of Psychology (1890).
Misattributed
Source: Happy Homes and the Hearts That Make Them

Reported in Phinneys' Calendar (1878), edited by Andrew Beers.