朱子格言的翻譯如下：
1. 立志是讀書人最要緊的一件事。
"Set立志是讀書人最緊要的事情."
2. 須是溫醇，不要激烈。
"It should be moderate and mild, not fiery and ardent."
3. 治心治身，要務在推己。
"The key to governing the mind and body lies in practicing self-restraint."
4. 知之者不如好之者，好之者不如樂之者。
"The knowledgable are not as good as those who are passionate, and those who are passionate are not as good as those who are delighted."
以上格言的翻譯僅供參考，不同人可能存在不同翻譯，請結合自身實際進行翻譯。