What are the greatest questions that you think other people should learn about?

My favorites are: - that evolution is a process (and is blind) - relativity (special and general) - different models of what programming is and how it is created (truth,deduction, and computation) - motivations for living and how to live (Steve Jobs commencement speech, Bhagavad Gita, etc...)

Everyone should learn about the great philosophical questions.

How to help your neighbor, in the small and in the large.