"Qualquer um pode ser completamente feliz, se depender apenas de si e tiver em si mesmo tudo o que chamar de seu."

"Six mistakes mankind keeps making century after century: Believing that personal gain is made by crushing others; Worrying about things that cannot be changed or corrected; Insisting that a thing is impossible because we cannot accomplish it; Refusing to set aside trivial preferences; Neglecting development and refinement of the mind; Attempting to compel others to believe and live as we do."

"A natureza não nos permitiu conhecer o limite das coisas."