“All normal human beings have soi-disant mixed-up glands. The race is divided into two parts: those who know this and those who do not.”
Source: Friday (1983), Ch. XXI, p. 214
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Robert A. Heinlein 557
American science fiction author 1907–1988Related quotes

Have You a Hobby?, Answers, 21 April 1934
Reproduced in The Collected Essays of Sir Winston Churchill, Vol IV, Churchill at Large, Centenary Edition (1976), Library of Imperial History, p. 288. ISBN 0903988453
The 1930s
“I divide all readers into two classes: those who read to remember and those who read to forget.”

Don, in The Philanthropist (1969), scene 6
Source: Give Me Liberty! (1998), Ch. 15 : Black and White Together, p. 168

Already, in the state of emergency that the crisis has unleashed, we are seeing extraordinary measures emerge that reveal that much of the neoliberal regime’s claims to necessity and austerity were transparent lies. The God-like market has fallen, again. In different places a variety of measures are being introduced that would have been unimaginable even weeks ago. These have included the suspension of rents and mortgages, the free provision of public transit, the deployment of basic incomes, a hiatus in debt payments, the commandeering of privatized hospitals and other once-public infrastructure for the public good, the liberation of incarcerated people, and governments compelling private industries to reorient production to common needs. We hear news of significant numbers of people refusing to work, taking wildcat labor action, and demanding their right to live in radical ways. In some places, the underhoused are seizing vacant homes. We are discovering, against the upside-down capitalist value paradigm which has enriched the few at the expense of the many, whose labor is truly valuable: care, service, and frontline public sector workers. There has been a proliferation of grassroots radical demands for policies of care and solidarity not only as emergency measures, but in perpetuity.
No return to normal: for a post-pandemic liberation (March 23, 2020)

Scientists
The Note-Books of Samuel Butler (1912), Part XIV - Higgledy-Piggledy