指从心理上接受思想、观念、知识等，与“外化”相对to internalize

• 可以把中国文学吸收外来影响分为“外化”和“内化”两个阶段。

  The absorption of external influences by Chinese literature can be divided into two stages: externalization and internalization.

• 科学精神是科学的灵魂部分，它内化在科学家的良知中。

  The scientific spirit is the soul of science. It is internalized within a scientist's conscience.