“Adapt what is useful, reject what is useless, and add what is specifically your own.”
“Therefore, what has a (positive) existence serves for profitable adaptation, and what has not that for (actual) usefulness.”
“What is evolution if not creative adaptation and the progression of our own souls?”
“Humanity is so adaptable [...] Truly amazing, what people can get used to, as long as there are a few compensations.”
“All human eyes are useless. You see only what you expect to see, and nothing more; and what is the use of sight like that?”
“We're all crazy. What's your specific form of crazy?”