Locke senses nothing of the depths of the Cartesian epoche [critique] and of the reduction to the ego. He simply takes over the ego as soul, which becomes acquainted, in the self-evidence of self-experience, with its inner states, acts, and capacities. Only what inner self-experience shows, only our own “ideas,” are immediately, self-evidently given. Everything in the external world is inferred.

http://www.marxists.org/reference/subject/philosophy/works/ge/husserl.htm