He mentally visualizes a complex form from all round itself;
he knows while he looks at one side what the other side is like;
he identifies himself with its centre of gravity, its mass, its weight;
he realizes its volume, as the space that the shape displaces in the air.

以上4个分句，有3点疑问：
1）identify...with...  究竟是什么意思？
2）mass指的是物理学中的质量，还是艺术中的“点线面”中的“面”？
3）最后一句as...做什么成分？
--
FROM 114.253.13.*

看了一下其他上下文，我觉得identify with那句是指雕塑家在雕刻前，已经和作品合二为一。

”identify with“这个phrasal verb的意思：

to think of (something) as being the same as (something else)

or

to think of someone as being very closely associated with something

【 在 zuohan 的大作中提到: 】
: He mentally visualizes a complex form from all round itself;
: he knows while he looks at one side what the other side is like;
: he identifies himself with its centre of gravity, its mass, its weight;
: ...................
--
修改:speedmancs FROM 160.34.93.*
FROM 160.34.93.*

参考书，也是这么解释的
【 在 speedmancs 的大作中提到: 】
: 看了一下其他上下文，我觉得identify with那句是指雕塑家在雕刻前，已经和作品合二为一。
: ”identify with“这个phrasal verb的意思：
: to think of (something) as being the same as (something else)
: ...................
--
FROM 114.253.13.*