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Mengenai pekerjaan intelektual, memang tetap menjadi fakta, bahwa keputusan besar di bidang pemikiran dan penemuan penting serta solusi masalah hanya mungkin bagi seorang individu, bekerja dalam kesendirian. Asli: As regards intellectual work it remains a fact, indeed, that great decisions in the realm of thought and momentous discoveries and solutions of problems are only possible to an individual, working in solitude.
