根源

shí jiàn shì yī qiè kē xué zhī shi de gēn yuán

实践是一切科学知识的根源。

Practical experience is the source of all knowledge science.

zhàn zhēng de gēn yuán shì tān lán

战争的根源是贪婪。

The root of war is greed.

wú zhī shì xǔ duō zuì è de gēn yuán

无知是许多罪恶的根源。

Ignorance is the parent of many evils.

zhè xiē xiàn xiàng gēn yuán yú tā de shè huì zhì dù

这些现象根源于它的社会制度。

These phenomena are caused by the social system.

zhè chǎng zhàn zhēng gēn yuán yú yì shí xíng tài de chōng tū

这场战争根源于意识形态的冲突。

This war originated in ideological conflicts.

zhè ge wèn tí gēn yuán yú shuāng fāng de yì jiàn bù tóng

这个问题根源于双方的意见不同。

This problem is rooted in the disagreement of the two sides.