空气的密度决定物质的形态。
释义：他强调空气密度对于物质形态的决定性作用，认为物质的形态和性质都受到空气密度的影响。
自由的代价是永恒的警惕。
真理，通过理性思考和观察自然得出。
过去从未死去，它甚至还未过去。
The challenge in neuroscience is not just to map the brain, but to understand how it creates the mind.
A company's culture is defined by the actions of its leaders.