“If I love you, what business is it of yours?”

“Age does not make us childish, as some say; it finds us true children.”

“The world is so empty if one thinks only of mountains, rivers & cities; but to know someone who thinks & feels with us, & who, though distant, is close to us in spirit, this makes the earth for us ...”

“I have so much in me, and the feeling for her absorbs it all; I have so much, and without her it all comes to nothing.”

“You must, in studying Nature, always consider both each single thing and the whole: nothing is inside and nothing is outside, for what is within is without. Make haste, then, to grasp this holy mys...”

“A dim vastness is spread before our souls; the perceptions of our mind are as obscure as those of our vision... But alas! when we have attained our object, when the distant 'there' becomes the pres...”

“This is what is meant by the phenomenology of the science-making process: Self-observation always leads us to an existential point about the metaphysics of experience, and it is almost always a tra...”

“My life will have been a succession of lives, as if I have had several lives, a multiplicity of stories and roles. I have not ceased to have changes of life.”