It stands to the everlasting credit of science that by acting on the human mind it has overcome man’s insecurity before himself and before nature.
It should be possible to explain the laws of physics to a barmaid.
If we knew what it was we were doing, it would not be called research, would it?
Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
As far as the laws of mathematics refer to reality, they are not certain, and as far as they are certain, they do not refer to reality.