"I attribute the quarrelsome nature of the Middle Ages young men entirely to the want of the soothing weed"

"The art of medicine consists in amusing the patient while nature cures the disease"

"The young man knows the rules, but the old man knows the exceptions"

"Sex is a part of nature. I go along with nature"

"Neurotics complain of their illness, but they make the most of it, and when it comes to talking it away from them they will defend it like a lioness her young"

"Young men have a passion for regarding their elders as senile"

"Youth is not a question of years: one is young or old from birth"

"Where is human nature so weak as in the bookstore?"

"We cannot command Nature except by obeying her"

"He loves nature in spite of what it did to him"

"Nature and wisdom never are at strife"