"We do not expect people to be deeply moved by what is not unusual....if we had a keen vision and feeling of all ordinary human life, it would be like hearing the grass grow and the squirrel's heart beat, and we should die of that roar which lies on the other side of silence."
This quote is from the George Eliot (pen name of Mary Anne Evans) book Middlemarch and was posted in a NYC subway as part of the MTA Train of Thought program.