err

err on the right side

act so that the least harmful of possible mistakes or errors is the most likely to occur

力求稳妥

err on the side of

display more rather than less of (a specified quality) in one's actions

（行动上）多表现（某种品质）

it is better to err on the side of caution.

多一些谨慎总是好的。

to err is human, to forgive divine

(proverb)it is human nature to make mistakes oneself while finding it hard to forgive others

(谚)犯错人皆难免，宽恕则属超凡