"To revolutionize, at one effort, the universal world of human thought, human opinion, and human sentiment.... All that he has to do is to write and publish a very little book. Its title should be simple--a few plain words--"My Heart Laid Bare." But--this little book must be true to its title."
"Unlike Descartes, we own and use our beliefs of the moment, even in the midst of philosophizing, until by what is vaguely called scientific method we change them here and there for the better. Within our own total evolving doctrine, we can judge truth as earnestly and absolutely as can be, subject to correction, but that goes without saying."
"The predicate of truth-value of a proposition, therefore, is a mere fictive quality; its place is in an ideal world of science only, whereas actual science cannot make use of it. Actual science instead employs throughout the predicate of weight."
"When you realize how hard it is to know the truth about yourself, you understand that even the most exhaustive and well-meaning autobiography, determined to tell the truth, represents, at best, a guess. There have been times in my life when I felt incredibly happy. Life was full. I seemed productive. Then I thought,"Am I really happy or am I merely masking a deep depression with frantic activity?" If I don't know such basic things about myself, who does?"