Those who believe in God because their experience of life and the facts of nature prove his existence must have led sheltered lives and closed their hearts to the voice of their brothers' blood.
The great artist is the man who most obviously succeeds in turning his pains to advantage, in letting suffering deepen his understanding and sensibility, in growing through his pains.
The refusal to belong to any school of thought, the repudiation of the adequacy of any body of beliefs whatever, and especially of systems, and a marked dissatisfaction with traditional philosophy as superficial, academic, and remote from life-that is the heart of existentialism.