The words were written in Spanish, but whether written in Spanish, English or any other language, the meaning is the same.
Men love darkness rather than light because their deeds are evil.
The light which exposes evil is the light of the gospel which is personified in the person of Christ. This hatred of the light is seen in men's rejection of God, Christ and the gospel. Those who reject the existence of God must come up with some explanation for their own existence as well as the existence of all things. Light rejecters have been all too willing to embrace the theory of evolution. This theory allows them to put out the light so they can keep on sinning without any fear of having to give an account to an Almighty Creator.