There are (or is) indeed no contradiction between science and religion, the fields of which are different, and which, far from mutually fighting and persecute, must, on the contrary, complete each other.
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.)
Apart from selfish reasons, such as fear of punishments, fear of blame, of dishonour, etc, there remains only two motives that can stop (or prevent, "empâecher", Fr.) men from acting badly; the natural sense of commiseration (or "sympathy", - "commisération", Fr.) for one's fellow men - compassion, and the influence of education, by association of ideas ("par l'association d'idées", Fr.) - habit.
The concept of absolute, hence (or whence) springs, in the moral field, the moral laws or norms, represent, in the field of knowledge, the principle of identity, which is the fundamental law of the thought; norms of logic springs from it, that govern the thought (or mind) in the field of science." ("Le concept de l'absolu, d'où découlent, dans le domaine moral, les lois ou normes morales, constitue, le principe d'identité, qui est la loi fondamentale de la pensée; il en découle les normes logiques qui régissent la pensée dans le domaine de la science.")
The divine element manifests itself (or show up) in man as well by his aptitude for science, than by his aptitude for virtue. True morality, true philosophy and true art are in their essence ("dans leur essence", Fr.) religious."
If the present civilisation does not acquire some stable moral fondations ("bases morales stables", Fr.), its existence will hardly be more assured than that of the civilisations that have preceeded it, and which have fallen (or collapse, or failed).
The antagonism between nationalities will lose all its acuteness on the day when neither the iniquitous tendency to oppression and domination, nor the perpetual danger of the threatening preparations for war will exist. ("L'antagonisme entre les nationalités perdra toute son acuité le jour où n'existera plus la tendance inique à l'oppression et à la domination, ni le perpétuel danger des menaçants préparatifs de guerre. », Fr. ")
See that unfortunate soldier who is falling hurt to death ("tombe blessé à...", Fr.) on the battlefield; he learns that his folks have vanquished and dies happy. He detached himself from himself (s'est détacher de lui-même", Fr.), has identified himself with something greater and more lasting than himself; his homeland ("patrie", Fr.); thus, while dying as an individual, he has the certainty to survive in a larger existence.
To be effective, morality has to be reasoned (or worked out). To want ("vouloir", Fr.) to repress evil only by coercion, and to obtain morality by a sort of training with the help of constraint, without motivating it from within, is to make it an unnatural result, devoided of lastind value.
Whoever has recognized the vainglory of individuality will not attach any store ("n'attachera aucun prix à", Fr.) to fame. The only one thing which is really valuable, it is to do good.
When under the influence of certain (or some) reasons (or causes) (alcohol, war, etc - added Spir here) the low instincts are unbridled (or unrestrained), the brute appears (or come forward, "apparait", Fr.) and rule over (or dominate), stifling every ("toute", Fr.) noble, generous impulse; it is then the ruin (or downfall or decline) of any humanity in man.
Place (or put) a spider on top of a mountain, it will only try to catch flies; alas, they are many those who, in the figurative meaning, have spider's eyes.
Nothing is more stimulating and more salutary to (or for) the inner (or inward) development than the exemple of men devoted to the good. It is in the company of men pursuing a same ideal that the still weavering (or unsteady) soul can set oneself ("se fixer", Fr) and stick to (or attach to) everything that is noble and generous.