Perfection does not come from belief or faith. Talk does not count for anything. Parrots can do that. Perfection comes through the disinterested performance of action.
One can't understand everything at once, we can't begin with perfection all at once! In order to reach perfection one must begin by being ignorant of a great deal. And if we understand things too quickly, perhaps we shan't understand them thoroughly.
The crow doth sing as sweetly as the lark When neither is attended; and I think The nightingale, if she should sing by day When every goose is cackling, would be thought No better a musician than the wren. How many thing by season seasoned are To their right praise and true perfection!
Religion is not simply a theory, it is a higher life, of which morality is an integral part - a life devoted to the worship of the good and the true, for God, the absolute, is the supreme source of all perfection" ("La religion n'et pas une smple théorie, elle est une vie supérieure, dont la moralité fait partie intégrante - une vie vouée au culte du bien et du vrai, car Dieu, l'absolu est la source de toute perfection", Fr.)
The more progress physical sciences make, the more they tend to enter the domain of mathematics, which is a kind of centre to which they all converge. We may even judge the degree of perfection to which a science has arrived by the facility with which it may be submitted to calculation.
The devotion of such titans of spirit as Lenin to an Ideal must bear fruit. The nobility of his selflessness will be an example through centuries to come, and his Ideal will reach perfection.