Source: All I Really Need to Know I Learned in Kindergarten (1986) 
Context: Take any one of those items and extrapolate it into sophisticated adult terms and apply it to your family life or your work or your government or your world and it holds true and clear and firm. Think what a better world it would be if we all — the whole world — had cookies and milk about three o’clock every afternoon and then lay down with our blankies for a nap. Or if all governments had as a basic policy to always put things back where they found them and to clean up their own mess.
And it is still true, no matter how old you are — when you go out into the world, it is best to hold hands and stick together.
                                    
“When science shall have effectually demonstrated to us the origin of matter, and proved the fallacy of the occultists and old philosophers who held (as their descendants now hold) that matter is but one of the correlations of spirit, then will the world of skeptics have a right to reject the old Wisdom, or throw the charge of obscenity in the teeth of the old religions.”
Source: Isis Unveiled (1877), Volume I, Chapter XV
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Helena Petrovna Blavatsky 69
occult writer 1831–1891Related quotes
[Consolmagno, Guy, Mueller, Paul, https://www.google.com/books?id=lf5vDwAAQBAJ&pg=PA16, 9780804136952, Would You Baptize an Extraterrestrial?: And Other Questions from the Astronomers' In-Box at the Vatican Observatory, 16, 2014, Image]
“No, that is the great fallacy: the wisdom of old men. They do not grow wise. They grow careful.”
Source: A Farewell to Arms (1929)
Source: The Worldly Philosophers (1953), Chapter VI, Karl Marx, p. 137
Source: Wonderful Life (1989), p. 60
“The straightest way to the heart of old matters is an old letter.”
Source: Modern thinkers and present problems, (1923), p. 3 : Chapter 1. Giordano Bruno, 1548-1600
Quoted in A Life of Azikiwe by K. A. B. Jones-Quartey (Penguin, 1965), p. 121
“Doesn’t matter how old the speaker is, it’s the words that matter.”
Source: Short fiction, The Man Who Sold The Moon (2014), p. 148
                                        
                                        Nem a juventude sabe o que pode nem a velhice pode o que sabe. 
Source: The Cave (2000), p. 4 (Vintage 2003)