"So you must always remember / that time ends the beauty"

"But then I ask myself, I have never truly known the man whose flank I have led one difficult and ascetic life for. Perhaps he has played with my idealism, taking advantage for dark scopes that he has …"

"But, yet acquired qualities should always have a certain agreement and a certain union with our own natural qualities, which they imperceptibly extend and increase."

"I love nature, what is not beautiful in nature, there are no ugly things. Sometimes the world oppresses me and then I always go back to nature, the source of all things."

"Real understanding of a thing comes from taking it apart oneself, not reading about it in a book or hearing about it in a classroom. To this day I always insist on working out a problem from the begin…"