Prudence reproaches; conscience accuses. - Immanuel Kant

A learned woman might just as well have a beard, for that expresses in a more recognizable form the profundity for which she strives.

Thus there is an analogy between the juridical relation of human actions and the mechanical relation of moving forces. I never can do anything to another man without giving him a right to do the same to me on the same conditions; just as no body can act with its moving force on another body without thereby causing the other to react equally against it.

"Gustavo Solivellas dice: "El que es cruel con los animales se endurece también en su trato con los hombres. Podemos juzgar el corazón de un hombre por su tratamiento de los animales" (Immanuel Kant)"