It is important to realize that in physics today, we have no knowledge of what energy is

Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

I love to think. I once considered taking drugs as an attempt to better understand an altered state of mind; however, I decided not to. I didn't want to chance ruining the machine.

Science is like sex: sometimes something useful comes out, but that is not the reason we are doing it

As usual, nature's imagination far surpasses our own, as we have seen from the other theories which are subtle and deep.

[B]eyond poverty, beyond the point that the material needs are reasonably satisfied, only from within is peace.

Physicists like to think that all you have to do is say, these are the conditions, now what happens next?