The ethical principle at the heart of this policy is simple: Do No Harm.

CNN: DJs broke 'Do No Harm' rule

We need to believe that people have a sense of duty born of moral and ethical principle rather than the law.

BBC: UK

It is a simple rule, based on an ethical principle, which allowed a company to view the decision as either black or white when others saw a debatable gray.

FORBES: Amazon Says, "WikiTHIS"

The whole reason that we embrace the ethical principle of the right to choose is that it goes some way to ensuring that a woman's biology does not come to define her life in a way that would never happen to men.

CNN: Surrogate mother had the right to choose

In accordance with the work programme of the IBC for 2012-2013, two main topics will be discussed during these meetings: the issue of traditional medicine and its ethical implications and the principle of non-discrimination and non-stigmatization, set forth in article 11 of the UNESCO Universal Declaration on Bioethics and Human Rights (2005).

UNESCO: All Events | United Nations Educational, Scientific and Cultural Organization

Given the level of uncertainty and the political and ethical challenges mentioned above, the international community feels it is critical to uphold the precautionary principle.

UNESCO: MEDIA SERVICES