The development of science and of the creative activities of the spirit require a freedom that consists in the independence of thought from the restrictions of authoritarian and social prejudice.
The highest realms of thought are impossible to reach without first attaining an understanding of compassion.
Is human reason, then, without experience, merely by taking thought, able to fathom the properties of real things? In my opinion the answer to this question is, briefly, this: — As far as the laws of mathematics refer to reality, they are not certain; and as far as they are certain, they do not refer to reality.
It is the mark of an educated mind to entertain a thought without accepting it.
The morbid thought had a power of its own that he could not control. It was not foreseen in his philosophical brand of psychology, where everything flowed neatly from consciousness and sense-perception. The professor admitted that his case was pathological, but there his thinking stopped, because it had arrived at the sacrosanct border-line between the philosophical and the medical faculty.
Where does a thought go when it’s forgotten?
I had thought about cocaine in a kind of day-dream.
As regards intellectual work it remains a fact, indeed, that great decisions in the realm of thought and momentous discoveries and solutions of problems are only possible to an individual, working in solitude.
Quite often they are lines of thought starting out from more than one centre, but not without their points of contact; almost invariably one train of thought is accompanied by its contradictory opposite, associatively linked to it by contrast.
The dream is a sort of substitution for those emotional and intellectual trains of thought.