The metaphors based on scientific hypothesis and scientific models are subject to confirmation and falsification. 不管是基于隐喻而形成的科学假说，还是具有隐喻性的科学模型，都需要经验的确证或证伪。
Kuhn recognized, as did Kant, that there will always be a gap between the best scientific models and the underlying realities of nature. 库恩承认，康德也强调，最好的科学模型与下边的自然界的现实性之间永远有差距。
