You can't ask your pharmacist to stock larger quantities of potassium nitrate because you want to make a bigger rocket.

I'm not driven by being understood.

If reincarnation is a useful biological idea it is certain that somewhere in the universe it will happen.

Sometimes a good idea comes to you when you are not looking for it. Through an improbable combination of coincidence, naivete and lucky mistakes.

Fish don't know much about water, and people didn't know much about air.

Each of us have things and thoughts and descriptions of an amazing universe in our possession that kings in the 17th Century would have gone to war to possess.

The mystery of that damn virus has been generated by the $2 billion a year they spend on it.