Arthur C. Clarke

"Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying."

"Great art and domestic bliss are mutually incompatible. Sooner or later, you'll have to make your choice."

"I don't believe in God but I'm very interested in her."

"The rash assertion that 'God made man in His own image' is ticking like a time bomb at the foundation of many faiths, and as the hierarchy of the universe is disclosed to us, we may have to recognize …"

"There are some things that no amount of pure intelligence can anticipate, but which can only be learned by bitter experience."

"I'm sure the universe is full of intelligent life. It's just been too intelligent to come here."

"Clarke's First Law: When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong."

"It is surprising how long it takes to do a simple addition when your life depends on the answer."