Albert Einstein > Quotes > Quote > Shailendra liked it

“Is human reason, then, without experience, merely by taking thought, able to fathom the properties of real things. In my opinion the answer to this question is, briefly, this:--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.”
― Albert Einstein, Sidelights on Relativity