Physical is not the only criterion of truth: there are also psychic truths which can neither be explained nor proved nor contested in any physical way.
“物质”不是唯一的事实标准:还存在心理事实,而且无法以任何的物质方式来解释、证明、或辩驳它。
"Life is a process of becoming, a combination of states we have to go through."
"The world is full of obvious things which nobody by any chance ever observes."