Fertilization of the soul is the reason for the necessity of art.

I would be a billionaire if I was looking to be a selfish boss. That's not me.

It is not paradox to say that in our most theoretical moods we may be nearest to our most practical applications.

The vitality of thought is in adventure. Idea's won't keep. Something must be done about them. When the idea is new, its custodians have fervour, live for it, and, if need be, die for it. Their inheritors receive the idea, perhaps now strong and successful, but without inheriting the fervour; so the idea settles down to a comfortable middle age, turns senile, and dies.

The aim of science is to seek the simplest explanation of complex facts... Seek simplicity and distrust it.

In the study of ideas, it is necessary to remember that insistence on hard-headed clarity issues from sentimental feeling, as it were a mist, cloaking the perplexities of fact. Insistence on clarity at all costs is based on sheer superstition as to the mode in which human intelligence functions. Our reasonings grasp at straws for premises and float on gossamers for deductions.

Knowledge is always accompanied with accessories of emotion and purpose.