One of the galaxy's brightest minds, physicist Stephen Hawking, has died at age 76 and tributes have come in from all corners of the globe.

Here's "the most important pieces of advice" Stephen Hawking gave his children: "Look up at the stars," "never give up work" and love is "rare," so "don't throw it away."

Stephen Hawking, author of "A Brief History of Time," died at 76.