sentences:  However, over time, and in part due to his vibrant personality, he befriended Madame du Deffand, whose powerful salon ultimately allowed him to enter the public eye as a philosophe.d'Alembert also became a close ally of Diderot, and eventually, d'Alembert was a man who was held in very high regard among Europe's intellectuals.Ultimately, d'Alembert's tendency to turn more to history to explain the foundations of science and ethics reflects a general historical trend to seek enlightenment and better understanding of human nature in history.