Education is indirectly related to happiness because it increases income and income increases happiness. Longer years of education are associated with increased employability and job security.
教育与幸福感直接相关联，因为教育会提高收入，而收入又会提高幸福感。较长的受教育年限能增加就业能力，保障职业安全感。
The direct effect of education on happiness is mixed and varies between countries.
在不同的国家，教育对于幸福感的直接作用也不同。