“由此而论”可以翻译为 “from this, it can be concluded that”、“based on this, we can say that” 或 “hence, it follows that” 等，具体表达可根据语境和所需强调的点进行选择。
“from this, it can be concluded that”：强调从已知事实或情况中推导出结论，适用于需要明确逻辑推导的场合。
“based on this, we can say that”：侧重于基于已有信息或前提发表观点或陈述，适用于需要阐述基于事实的判断。
“hence, it follows that”：较为正式，常用于学术或书面语境，强调结论的必然性，适用于需要严谨逻辑表达的场合。