"As an older friend, I must advise you against it, for, in the first place you will not succeed, and even if you succeed, no one will believe you" (Max Planck t

"As an older friend, I must advise you against it, for, in the first place you will not succeed, and even if you succeed, no one will believe you" (Max Planck to Einstein on his pursuit to develop a new theory of gravity).