Famous quotes containing the words mach and/or alert:
“Physics is experience, arranged in economical order.”
—Ernst Mach (1838–1916)
“Good guilt is a product of love and responsibility. It is a natural, positive instinct that parents and good child care providers have. If bad guilt is a monster, good guilt is a friendly fairy godmother, yakking away in your head to keep you alert to the needs of your baby.”
—Jean Marzollo (20th century)
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