If there were events earlier than this time, then they could not affect what happens at the present time. Their existence can be ignored because it w… - Stephen Hawking

I discount suggestions that UFOs contain beings from outer space, as I think that any visits by aliens would be much more obvious - and probably also much more unpleasant.

I believe in the possible. I believe, small though we are, insignificant though we may be, we can reach a full understanding of the universe. You were right when you said you felt small, looking up at all that up there. We are very, very small, but we are profoundly capable of very, very big things.

People won't have time for you if you are always angry or complaining.