David

“Men, it has been well said, think in herds; it will be seen that they go mad in herds, while they only recover their senses slowly, one by one.”
― Charles MacKay, Extraordinary Popular Delusions and the Madness of Crowds

“This Christian claim [of universal validity] is naturally offensive to the adherents of every other religious system. It is almost as offensive to modern man, brought up in the atmosphere of relativism, in which tolerance is regarded almost as the highest of the virtues. But we must not suppose that this claim to universal validity is something that can quietly be removed from the Gospel without changing it into something entirely different from what it is... Jesus' life, his method, and his message do not make sense, unless they are interpreted in the light of his own conviction that he was in fact the final and decisive word of God to men... For the human sickness there is one specific remedy, and this is it. There is no other.”
― Stephen Neill, Christian faith and other faiths: The Christian dialogue with other religions

“If anyone on the verge of action should judge himself according to the outcome, he would never begin. Even though the result may gladden the whole world, that cannot help the hero; for he knows the result only when the whole thing is over, and that is not how he became a hero, but by virtue of the fact that he began.”
― Søren Kierkegaard, Fear and Trembling

“If you want to change the world, pick up your pen and write.”
― Martin Luther