Cassie

“The peculiar evil of silencing the expression of an opinion is, that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it. If the opinion is right, they are deprived of the opportunity of exchanging error for truth: if wrong, they lose, what is almost as great a benefit, the clearer perception and livelier impression of truth, produced by its collision with error.”
― John Stuart Mill, On Liberty

“Those who dwell, as scientists or laymen, among the beauties and mysteries of the earth, are never alone or weary of life.”
― Rachel Carson

“We live in a world which is full of misery and ignorance, and the plain duty of each and all of us is to try to make the little corner he can influence somewhat less miserable and somewhat less ignorant than it was before he entered.”
― Thomas Henry Huxley

“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