陆地中央的海 · THE SEA IN THE MIDDLE
The Sea That Joined Three Continents — Europe · Africa · Asia
地中海——约 250 万平方公里，几乎被陆地完全环抱——把海变成了路。它平静、几无潮汐、岛屿星布，让腓尼基人、希腊人与罗马人把遥远的海岸当作近邻；罗马最终干脆称它为「我们的海」。
一片近乎封闭的海，比大洋温柔——潮差小，岛屿间一跃可达，航季可料。于是渡海比翻越各岸背后的高山大漠更省力，货物、神祇与字母经船行得比陆路更快。古典世界是面朝海水、而非背后的腹地长大的。
The Mediterranean — about 2.5 million km² ringed almost entirely by land — turned a sea into a road. Calm, nearly tideless and dotted with islands, it let Phoenicians, Greeks and Romans treat distant coasts as neighbours; Rome ended up calling it simply Mare Nostrum, 'our sea'.
An almost enclosed sea is gentler than an ocean — small tides, short hops from island to island, sailing weather you can predict. That made the water cheaper to cross than the mountains and deserts behind each shore, so goods, gods and alphabets moved faster by ship than by land. The classical world grew up facing the water, not its own hinterland.