“You live as if you were destined to live forever, no thought of your frailty ever enters your head, of how much time has already gone by you take no heed. You squander time as if you drew from a full and abundant supply, so all the while that day which you bestow on some person or thing is perhaps your last. You have all the fears of mortals and all the desires of immortals… What foolish forgetfulness of mortality to defer wise resolutions to the fiftieth or sixtieth year, and to intend to begin life at a point to which few have attained.”

“You live as if you were destined to live forever, no thought of your frailty ever enters your head, of how much time has already gone by you take no heed. You squander time as if you drew from a full and abundant supply, though all the while that day which you bestow on some person or thing is perhaps your last.”

“I am wholly yours - you are everything to me; we will sustain each other in all the ills of life it may please fate to inflict upon us; you will soothe my troubles; I will comfort you in yours.”

“All things must be examined, debated, investigated without exception and without regard for anyone's feelings.”

“Nothing is duller than a progression of common chords. One wants some contrast, which breaks up the clear white light and makes it iridescent.”

“As long as the centuries continue to unfold, the number of books will grow continually, and one can predict that a time will come when it will be almost as difficult to learn anything from books as from the direct study of the whole universe. It will be almost as convenient to search for some bit of truth concealed in nature as it will be to find it hidden away in an immense multitude of bound volumes.”

“You have this comet trail of your own lived life, sparks from which arrive in the head all the time, whether you want them or not - life has been lived but it is still all going on, in the mind for better and for worse.”