One can't predict the weather more than a few days in advance.

I may contradict myself, but at least I don't contradict myself.

I believe that the long-term future of the human race must be space and that it represents an important life insurance for our future survival, as it could prevent the disappearance of humanity by colonizing other planets.

The universe does not behave according to our pre-conceived ideas. It continues to surprise us.

Maybe I'm being a bit harsh on philosophers, but they have not been very kind to me... I have been variously called nominalist, an instrumentalist, a positivist, a realist, and several other ists. The technique seems refutation by denigration: If you can attach a label to my approach, you don't have to say what is wrong with it... I am sure that Einstein, Heisenberg and Dirac didn't worry about whether they were realists or instrumentalists.

I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.

Of course it is possible that UFO's really do contain aliens as many people believe, and the government is hushing it up