General scepticism is the live mental attitude of refusing to conclude. It is a permanent torpor of the will, renewing itself in detail towards each successive thesis that offers, and you can no more kill it off by logic than you can kill off obstinacy or practical joking.

The first thing to learn in intercourse with others is non-interference with their own particular ways of being happy, provided those ways do not assume to interfere by violence with ours.

Our view of the world is truly shaped by what we decide to hear.

A great many people think they are thinking when they are merely rearranging their prejudices.

In youth we may have an absolutely new experience, subjective or objective, every hour of the day. Apprehension is vivid, retentiveness strong, and our recollections of that time, like those in a time spent in rapid and interesting travel, are of something intricate, multitudinous, and long-drawn-out. But as each passing year converts some of this experience into automatic routine which we hardly note at all, the days and the weeks smooth themselves out in recollection to a contentless unit, and the years grow hollow and collapse.

Habit simplifies our movements, makes them accurate, and diminishes fatigue.

Social evolution is a resultant of the interaction of two wholly distinct factors: the individual ... bearing all the power of initiative and origination in his hands; and, second, the social environment with its power of adopting or rejecting both him and his gifts. Both factors are essential to change. The community stagnates without the impulse of the individual. The impulse dies away without the sympathy of the community.