The Weirdest Philosophical Ideas in History Solipsism posits that only your own mind is sure to exist. Myth Fact None The ancient Stoics believed that emotions were the most important part of human experience. Myth Fact None Zeno’s Paradoxes argue that motion is an illusion. Myth Fact None The Ship of Theseus thought experiment questions whether an object that has had all its components replaced remains the same object. Myth Fact None George Berkeley’s philosophy asserts that physical objects exist independently of perception. Myth Fact None Time's up Most Popular