Physics is like sex: sure, it may give some practical results, but that's not why we do it.

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

I learned very early the difference between knowing the name of something and knowing something.

Religion is a culture of faith; science is a culture of doubt.

Physics is like sex. Sure, it may give some practical results, but that's not why we do it.

If you thought that science was certain - well, that is just an error on your part.