实践出真知的英文：
Experience is the mother of wisdom.
The proof of the pudding is in the eating.
[谚语]布丁好坏，不尝不知；实践出真知。
n. 经验，实践；经历，阅历；往事，体验
v. 经历，参与；感受，体验
control experiment
ph.1. 核对实验(实证某一变数单独对整个系统可能发生的影响)
Experience teaches
经验给人教训
Experience is the teacher
经验即良师
n. 母亲；大娘；女修道院院长；起源
v. 像母亲般地照顾
The girl is a reflection of her mother.
那女孩长得和她母亲一模一样。
The children clustered round their mother.
孩子们聚集在母亲身边。
Mother footed the stocking.
妈妈给这袜子换了底。
n. 智慧，才智；明智；知识
The received wisdom is that they cannot win.
大家一致认为他们不会赢。
It is wisdom sometimes to seem a fool
大智若愚
Learn wisdom by the follies of others
要从别人的愚行中学到聪明