As World War II permanently sated Europe's appetite for continental war,  some international standards were deemed necessary to militate against future conflict.  The Universal Declaration of Human Rights would be a wonderful and inspiring document were it not so at odds with current geopolitical brutality.

I marvel that as many countries became signitaries of it, and that it was written at all.

It is a fast read, and seems much like the US Bill of Rights.

I include articles 5-9 here as a sampler. 

Article 5.
No one shall be subjected to torture or to cruel, inhuman or degrading treatment or punishment.

Article 6.
 Everyone has the right to recognition everywhere as a person before the law.

Article 7.
All are equal before the law and are entitled without any discrimination to equal protection of the law. All are entitled to equal protection against any discrimination in violation of this Declaration and against any incitement to such discrimination.

Article 8.
Everyone has the right to an effective remedy by the competent national tribunals for acts violating the fundamental rights granted him by the constitution or by law.

Article 9.
No one shall be subjected to arbitrary arrest, detention or exile.

Article 10.
Everyone is entitled in full equality to a fair and public hearing by an independent and impartial tribunal, in the determination of his rights and obligations and of any criminal charge against him.