"Where religion speaks, reason has only a right to hear."

"To make good use of life, one should have in youth the experience of advanced years, and in old age the vigor of youth."

"Long ailments wear out pain, and long hopes joy."

"Presumption should never make us neglect that which appears easy to us, nor despair make us lose courage at the sight…"

"Reason shows us our duty; he who can make us love our duty is more powerful than reason itself."

"Religion has nothing more to fear than not being sufficiently understood."

"Science when well digested is nothing but good sense and reason."

"Can princes born in palaces be sensible of the misery of those who dwell in cottages?"

"To believe with certainty we must begin with doubting."

"O mnie Moskwa i będą wiedzieć Tatarowie I, różnego mieszkańcy świata, Anglikowie."