No nation has produced anything like his equal. There is no quality in the human mind, there is no class of topics, there is no region of thought, in which he has not soared or descended, and none in which he has not said the commanding word.
To understand the totality of this extraordinary thing called life, one must obviously not be too definite about these things. One cannot be definite with something which is so immense, which is not measurable by words. We cannot understand the immeasurable so long as we approach it through time.
God has given me a mule-like stubbornness to stick with a difficult problem and the intuitive powers to conceptualize complex hypothetical situations in my mind.