"Years of science fiction have produced a mindset that it is human destiny to expand from Earth, to the Moon, to Mars, to the stars"

"The torment of precautions often exceeds the dangers to be avoided. It is sometimes better to abandon one's self to destiny"

"Democracy is the art and science of running the circus from the monkey cage"

"Science never solves a problem without creating ten more"

"We have our own history, our own language, our own culture. But our destiny is also tied up with the destinies of other people - history has made us all South Africans"

"Anatomy is destiny"

"All science is either physics or stamp collecting"

"The science of today is the technology of tomorrow"

"Science does not know its debt to imagination"

"Only by joy and sorrow does a person know anything about themselves and their destiny. They learn what to do and what to avoid"

"If science fiction is the mythology of modern technology, then its myth is tragic"