Full Idea
I think I can safely say the nobody understands quantum mechanics.
Gist of Idea
Nobody understands quantum mechanics
Source
Richard P. Feynman (The Character of Physical Law [1965], 6)
Book Reference
Feynman,Richard: 'The Character of Physical Law' [Penguin 1992], p.129
A Reaction
It is really important that philosophers grasp this point!