"Love is composed of a single soul inhabiting two bodies."

"There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle."

"I live in that solitude which is painful in youth, but delicious in the years of maturity."

"God does not play dice with the universe."

"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

"However rare true love may be, it is less so than true friendship."