What were the main classical values returned with humanism?

Humanism is the term generally applied to the predominant social philosophy and intellectual and literary currents of the period from 1400 to 1650. The return to favor of the pagan classics stimulated the philosophy of secularism, the appreciation of worldly pleasures, and above all intensified the assertion of personal independence and individual expression. Zeal for the classics was a result as well as a cause of the growing secular view of life. Expansion of trade, growth of prosperity and luxury, and widening social contacts generated interest in worldly pleasures, in spite of formal allegiance to ascetic Christian doctrine. Men thus affected -- the humanists -- welcomed classical writers who revealed similar social values and secular attitudes.