The brain may be regarded as a kind of parasite of the organism, a pensioner, as it were, who dwells with the body.Arthur Schopenhauer
The most complicated achievements of thought are possible without the assistance of consciousness.Sigmund Freud
The conscious mind may be compared to a fountain playing in the sun and falling back into the great subterranean pool of subconscious from which it rises.Sigmund Freud
Illusions commend themselves to us because they save us pain and allow us to enjoy pleasure instead. We must therefore accept it without complaint when they sometimes collide with a bit of reality against which they are dashed to pieces.Sigmund Freud
We are part of this universe; we are in this universe, but perhaps more important than both of those facts, is that the universe is in us.Neil deGrasse Tyson
No other planet in the solar system is a suitable home for human beings; it's this world or nothing. That's a very powerful perception.Carl Sagan
We are not without empathetic terror when we open Pascal's 'Pensees' and read, 'I am the great silent spaces between worlds.'Carl Sagan
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works.Carl Sagan