He believes that the reason he has long been attentive to the environment is because he was originally trained as an engineer. He doesn't like to spend a lot of time on ideological disputes, "and I pay much more attention to public policies which are intimately related to the lives of the people," he says.
他自己認為長期眷顧環保的理由，是因為他是工程師出身，不喜歡花太多時間在意識型態的爭執上，「我更重視和民眾切身有關的公共政策」，他說，環保正是其中要題。