As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality.
Common sense is the collection of prejudices acquired by age eighteen.
When you are courting a nice girl an hour seems like a second. When you sit on a red-hot cinder a second seems like an hour. It's not that I'm afraid to die. I just don't want to be there when it happens. The lion and the calf shall lie down together but the calf won't get much sleep.