To middle class people who can't fall back on landed property, they invest a lot in themselves in order to get on in society.

对于不能依靠土地财产的中产阶级来说，他们为了在社会上取得成功而对自己进行了大量投资。

In the second place, every estate was kept intact under the law of primogeniture, which at the death of a lord transferred all his landed property to his eldest son.

其次，根据长子继承法， 每个财产都完好无损，在领主死后， 将他所有的土地财产转移给他的长子。