"Men are born ignorant, not stupid; they are made stupid by education."

"The only thing that will redeem mankind is co-operation."

"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts."

"Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by examining his wives' mouths."

"If a majority in every civilized country so desired, we could, within twenty years, abolish all abject poverty, quite half the illness in the world, the whole economic slavery which binds down nine te…"