Sam Bruskin

“The more radical the person is, the more fully he or she enters into reality so that, knowing it better, he or she can transform it. This individual is not afraid to confront, to listen, to see the world unveiled. This person is not afraid to meet the people or to enter into a dialogue with them. This person does not consider himself or herself the proprietor of history or of all people, or the liberator of the oppressed; but he or she does commit himself or herself, within history, to fight at their side.”
― Paulo Freire, Pedagogy of the Oppressed

“All happy families are alike; each unhappy family is unhappy in its own way.”
― Leo Tolstoy , Anna Karenina

“Like every other destruction of optimism, whether in a whole civilisation or in a single individual, these must have been unspeakable catastrophes for those who had dared to expect progress. But we should feel more than sympathy for those people. We should take it personally. For if any of those earlier experiments in optimism had succeeded, our species would be exploring the stars by now, and you and I would be immortal.”
― David Deutsch, The Beginning of Infinity: Explanations That Transform the World

“The whole [scientific] process resembles biological evolution. A problem is like an ecological niche, and a theory is like a gene or a species which is being tested for viability in that niche.”
― David Deutsch, The Fabric of Reality: The Science of Parallel Universes--and Its Implications