You Can Alter Your Life By Altering

It Is Wrong Always, Everywhere, And For Everyone, To Believe Anything Upon Insufficient Evidence.

A Little Cooling Down Of Animal Excitability And Instinct, A Little Loss Of Animal Toughness, A Little Irritable Weakness And Descent Of The Pain-threshold, Will Bring The Worm At The Core Of All Our Usual Springs Of Delight Into Full View, And Turn Us Into Melancholy Metaphysicians.

If You Wish To Upset The Law That All Crows Are Black, You Mustn't Seek To Show That No Crows Are; It Is Enough If You Prove One Single Crow To Be White.

Humanism . . . Is Not A Single Hypothesis Or Theorem, And It Dwells On No New Facts. It Is Rather A Slow Shifting In The Philosophic Perspective, Making Things Appear As From A New Centre Of Interest Or Point Of Sight.

The First Lecture In Psychology That I Ever Heard Was The First I Ever Gave.