1. However, today's businessman, selling in overseas markets, will frequently meet situations where it is difficult to square his business interests with his moral conscience.
    然而，当今做海外销售的商人们经常难以达到既确保自己的商业利益，又无愧道德良心的境地。

2. You should act according to your conscience.
    你要凭良心办事.

3. Self-respect and a clear conscience are powerful components of integrity and are the basis for enriching your relationships with others.
    自尊和问心无愧是正直的两个重要组成部分，也是加深你与他人关系的基础。

4. Conscience and hard work are valued.
    良知和苦干受到推崇。

5. I have a guilty conscience about forgetting to post your letter.
    我忘记寄出你的信,为此深感不安.