Friedrich Nietzsche

A clown disguised as a philosopher, when he criticizes what he considers his old master Schopenhauer on ascetic morality, or one of the highest points of his philosophy, demonstrates ipso facto that he is not a philosopher, not to mention when he tries to surpass Kant's concept of idealism but fails miserably. Ultimately, I recommend other, more interesting philosophers like Hume, Locke, Rousseau, Voltaire, and many others.