The horizon of many people is a circle with a radius of zero. They call this their point of view.
Failing isn't bad when you learn what not to do.
I have lived to prove Thoreau's contention that a man is rich in proportion to the number of things which he can afford to let alone.
A true genius admits that he/she knows nothing.
Education is what is left after you've forgotten everything you've learned.
It is entirely possible that behind the perception of our senses, worlds are hidden of which we are unaware.