Voluntary work refers to unpaid work that is done by an individual or group to benefit a community or cause, without any expectation of financial gain. This can include activities such as volunteering at a charity, helping out at a community center, or participating in environmental conservation projects.
Moral duty refers to the obligations that an individual has to adhere to a certain code of ethics or moral principles. This can include things like treating others with respect and fairness, being honest and trustworthy, and working to improve the well-being of others. In this context, the idea is that individuals have a moral duty to contribute to society through voluntary work, as it can help to improve the lives of others and create a better community for everyone.