W. Somerset Maugham said this quote

He was always seeking for a meaning in life, and here it seemed to him that a meaning was offered; but it was obscure and vague . . . He saw what looked like the truth as by flashes of lightening on a dark, stormy night you might see a mountain range. He seemed to see that a man need not leave his life to chance, but that his will was powerful; he seemed to see that self-control might be as passionate and as active as the surrender to passion; he seemed to see that the inward life might be as manifold, as varied, as rich with experience, as the life of one who conquered realms and explored unknown lands.