Kana

“Sì perché l'autorità dell'opinione di mille nelle scienze non val per una scintilla di ragione di un solo, sì perché le presenti osservazioni spogliano d'autorità i decreti de' passati scrittori, i quali se vedute l'avessero, avrebbono diversamente determinato.

For in the sciences the authority of thousands of opinions is not worth as much as one tiny spark of reason in an individual man. Besides, the modern observations deprive all former writers of any authority, since if they had seen what we see, they would have judged as we judge.”
― Galileo Galilei , Frammenti e lettere

“I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.”
― Galileo Galilei, Letter to the Grand Duchess Christina

“Conquer yourself rather than the world.”
― René Descartes

“There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.”
― Albert Einstein