What we usually consider as impossible are simply engineering problems... there's no law of physics preventing them.

Thus the yeoman work in any science, and especially physics, is done by the experimentalist, who must keep the theoreticians honest.

They basically ask their engineers to volunteer some probability figures, then they take the average. This is not science. This is voodoo,

[On the practical applications of particle physics research with the Large Hadron Collider.]

Sometimes the public says, 'What's in it for Numero Uno? Am I going to get better television reception? Am I going to get better Internet reception?' Well, in some sense, yeah. ... All the wonders of quantum physics were learned basically from looking at atom-smasher technology. ... But let me let you in on a secret: We physicists are not driven to do this because of better color television. ... That's a spin-off. We do this because we want to understand our role and our place in the universe.

كل ماهو غير مستحيل فهو ممكن

In some sense, gravity does not exist; what moves the planets and the stars is the distortion of space and time.