कुछ भी उपयुक्त हासिल करने के लिए तीन महत्त्वपूर्ण चीजें हैं : कड़ी मेहनत , दृढ़ता , और कॉमन – सेन्स .The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense. – Thomas A. Edison

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