Only passions, great passions, can elevate the soul to great things. — Denis Diderot. French philosopher and writer (1713–1784) Passion
Watch out for the fellow who talks about putting things in order! Putting things in order always means getting other people under your control.
Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.
There are three principal means of acquiring knowledge. . . observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination.
Genius is present in every age, but the men carrying it within them remain benumbed unless extraordinary events occur to heat up and melt the mass so that it flows forth.