In the introduction to The Origin of Species, he wrote: “I am well aware that scarcely a single point is discussed in this volume on which facts cannot be adduced, often apparently leading to conclusions directly opposite to those at which I have arrived. ”
ये तथ्य अकसर प्रत्यक्षतः ऐसे निष्कर्षों की ओर ले जाते हैं जो मेरे निष्कर्षों से बिलकुल विपरीत हैं । ”