Slade

“Both teachers and learners go to sleep at their post as soon as there is no enemy in the field.”
― John Stuart Mill, On Liberty

“religion, the most powerful of the elements which have entered into the formation of moral feeling, having almost always been governed either by the ambition of a hierarchy, seeking control over every department of human conduct, or by the spirit of Puritanism.”
― John Stuart Mill

“Chaos doesn’t mean that the system is behaving randomly, it means that it is unpredictable because it has many variables, it is too complex to measure, and even if it could be measured, theoretically the measurement cannot be done accurately and the tiniest inaccuracy would change the end result an enormous amount.”
― Michael S. Gazzaniga, Who's in Charge?: Free Will and the Science of the Brain

“No one can be a great thinker who does not recognize that as a thinker it is his first duty to follow his intellect to whatever conclusions it may lead.”
― John Stuart Mill, On Liberty