If you don't have a nasty obituary you probably didn't matter.
Most of what we see in the universe is dust.
I think the biggest misconception is that everybody has to learn mathematics. That seems to be a complete mistake.
The key to having an interesting life is to always say "yes" to anything crazy.
Life is nature's way to give mind oportunities it wouldn't otherwise had.
The great advances in science usually result from new tools rather than from new doctrines.