"All the advantages that man has gained from his ever-deepening understanding of the natural world that surrounds him,…"

"All too willingly man sees himself as the centre of the universe, as something not belonging to the rest of nature bu…"

"The scientist who considers himself absolutely "objective" and believes that he can free himself from the compulsion …"

"We are the highest achievement reached so far by the great constructors of evolution. We are their "latest" but certa…"

"Nobody can seriously believe that free will means that it is left entirely to the will of the individual, as to an ir…"

"I now come to the third great obstacle to human self-knowledge, to the belief — deeply rooted in our western culture …"

"The attitude of the true scientist towards the real limits of human understanding was unforgettably impressed on me i…"

"Nothing can better express the feelings of the scientist towards the great unity of the laws of nature than in Immanu…"

"Let us imagine that an absolutely unbiased investigator on another planet, perhaps on Mars, is examining human behavi…"

"The same individual geese on which we conducted these experiments, first aroused my interest in the process of domest…"