The true religion is to be posited not in the knowledge or confession of what God allegedly does or has done for our salvation, but in what we must d… - Immanuel Kant

"Enlightenment is man's emergence from his self-imposed nonage. Nonage is the inability to use one's own understanding without another's guidance. This nonage is self-imposed if its cause lies not in lack of understanding but in indecision and lack of courage to use one's own mind without another's guidance. Dare to know! (Sapere aude.) "Have the courage to use your own understanding," is therefore the motto of the enlightenment."

La incapacidad significa la imposibilidad de servirse de la propia inteligencia sin la guía de otro. Esta incapacidad es culpable porque su causa no reside en la falta de inteligencia sino de decisión y valor para servirse por sí mismo de ella sin la tutela de otro. ¡Sapere aude! ¡Ten el valor de servirte de tu propia tazón!: he aquí el lema de la Ilustración.

The master is himself an animal, and needs a master. Let him begin it as he will, it is not to be seen how he can procure a magistracy which can maintain public justice and which is itself just, whether it be a single person or a group of several elected persons. For each of them will always abuse his freedom if he has none above him to exercise force in accord with the laws. The highest master should be just in himself, and yet a man. This task is therefore the hardest of all; indeed, its complete solution is impossible, for from such crooked wood as man is made of, nothing perfectly straight can be built. That it is the last problem to be solved follows also from this: it requires that there be a correct conception of a possible constitution, great experience gained in many paths of life, and — far beyond these — a good will ready to accept such a constitution. Three such things are very hard, and if they are ever to be found together, it will be very late and after many vain attempts.