"The law cannot equalize mankind in spite of nature"

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

"We cannot command Nature except by obeying her"

"Nature and wisdom never are at strife"

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

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

"The sound of the human voice is the best of nature but only if it comes out from the feelings"

"The only medicine for suffering, crime, and all the other woes of mankind, is wisdom"

"Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind"

"There are more men ennobled by study than by nature"

"Non-violence is the greatest force at the disposal of mankind. It is mightier than the mightiest weapon of destruction devised by the ingenuity of man"