The pursuit of knowledge is a never-ending journey, and each discovery opens the door to new questions.
Attention is the taking possession by the mind, in clear and vivid form, of one out of what seem several simultaneously possible objects or trains of thought.
Our memory is a more perfect world than the universe: it gives back life to those who no longer exist.
The only thing necessary for the triumph of evil is for good men to do nothing.
The mind is what the brain does.