"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."
"Anyone who has never made a mistake has never tried anything new."
"Life is like riding a bicycle. To keep your balance, you must keep moving."
"The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking."
"Great spirits have always encountered violent opposition from mediocre minds."
via +Goodreads
