वैज्ञानिक पद्धति कुछ और नहीं बल्कि व्यक्तिपरक राय को यथासंभव बाहर रखना है, ऐसे प्रयोगों के माध्यम से जहाँ अवलोकन यह बता सके कि क्या घटनाएं वास्तव में एक-दूसरे से जुड़ी हैं।
The scientific method ... is nothing but the exclusion of subjective opinions as far as possible, by the devising of experiments where observation can give objective answers, yes or no, to questions whether events are causally connected.
The scientific method ... is nothing but the exclusion of subjective opinions as far as possible, by the devising of experiments where observation can give objective answers, yes or no, to questions whether events are causally connected.
लेकिन विज्ञान प्रकृति के उत्तरों का संग्रह है; जबकि मानविकी मनुष्य के विचारों का।
But science is the collection of nature's answers; the humanities the collection of men's thoughts.
But science is the collection of nature's answers; the humanities the collection of men's thoughts.
एक जीवित जीव का अध्ययन दो अलग-अलग पहलुओं से किया जाना चाहिए। एक है कारण-विश्लेषण का पहलू, जो भ्रूण विज्ञान के लिए बहुत उपयोगी है। दूसरा है ऐतिहासिक-वर्णनात्मक पहलू, जो विकासवादी इतिहास की कड़ियों को सटीकता के साथ सुलझाता है। ये दोनों पहलू एक-दूसरे की घटनाओं के महत्व को समझने में मदद कर सकते हैं, लेकिन वे एक-दूसरे की जगह नहीं ले सकते।
A living organism must be studied from two distinct aspects. One of these is the causal-analytic aspect which is so fruitfully applicable to ontogeny. The other is the historical descriptive aspect which is unravelling lines of phylogeny with ever-increasing precision. Each of these aspects may make suggestions concerning the possible significance of events seen under the other, but does not explain or translate them into simpler terms.
A living organism must be studied from two distinct aspects. One of these is the causal-analytic aspect which is so fruitfully applicable to ontogeny. The other is the historical descriptive aspect which is unravelling lines of phylogeny with ever-increasing precision. Each of these aspects may make suggestions concerning the possible significance of events seen under the other, but does not explain or translate them into simpler terms.
वह कौन सा तंत्र है जो अलग-अलग जीन द्वारा नियंत्रित होने के बावजूद समान अंगों या 'पैटर्न' का निर्माण करता है? मैंने यह सवाल 1938 में पूछा था, और इसका जवाब आज तक नहीं मिला है।
What mechanism can it be that results in the production of homologous organs, the same 'patterns', in spite of their not being controlled by the same genes? I asked this question in 1938, and it has not been answered
What mechanism can it be that results in the production of homologous organs, the same 'patterns', in spite of their not being controlled by the same genes? I asked this question in 1938, and it has not been answered