"As far as I know, there is no proof whatever of the existence of an objective reality apart from our senses, and I do not see why we should accept the outside world as such solely by virtue of our senses." M.C. Escher
"Having failed to distinguish thought from things, we then fail to distinguish words from thoughts. We think that if we can label a thing we have understood it." Maha Sthavira Sangharakshita
"What then is time? If no one asks me, I know what it is. If I wish to explain it to him who asks, I do not know." Saint Augustine