"Colour-blindness always extends to the complementary colours. Those who are red blind are also green blind; those who are blind to blue have no consciousness of yellow. This law holds good for all mental phenomena; it is a fundamental condition of consciousness."

“With ordinary men the moments which are united in a close continuity out of the original discrete multiplicity are very few, and the course of their lives resembles a little brook, whereas with the genius it is more like a mighty river into which all the little rivulets flow from afar; that is to say, the universal comprehension of genius vibrates to no experience in which all the individual moments have not been gathered up and stored.”

“The great genius does not let his work be determined by the concrete finite conditions that surround him, whilst it is from these that the work of the statesman takes its direction and its termination. … It is the genius in reality and not the other who is the creator of history, for it is only the genius who is outside and unconditioned by history.”

“Not only virtue, but also insight, not only sanctity but also wisdom, are the duties and tasks of mankind.”

“The great man of science, unless he is also a philosopher, … deserves the title of genius as little as the man of action.”

“A man is first reverent about himself, and self-respect is the first stage in reverence for all things.”

“Man must act in such a way that the whole of his individuality lies in each moment.”