rationale of a thesis 怎么写

英语翻译
In making a long-term commitment ,your rationale should carry more weight than feelings.
要做长期性的承诺,你__________,要比感情用事更有分量.
能不能换一个简单易懂的单词?

英语高手帮我翻译一段专业英语
The rationale for this procedure is to minimize the threat to entire herds, should there be an outbreak of disease.Terminology may differ between farms or areas. For example, nursery may be designated as a weaned pig farm while a finishing farm may be referred to as a top house. Examiners will therefore need to ensure their comprehension of the taxpayer's use of terms.
The chapters that follow delve into areas that are highly technical in nature, together with more common issues confronting examiners in an industry that continues to evolve through technology and innovation.
诚请英语高手帮我翻译,一经采纳会追加分数的.恳请不要用个软件或者在百度、google里一输,完全乱七八糟不对的翻译就回答上来了.