Whenever you work on concrete peace, you find these five principles — namely, mutual respect for sovereignty and territorial integrity, mutual nonaggression, noninterference in each other's internal affairs, equality and mutual benefit, and peaceful coexistence — to be the keys that can unlock almost any lock.

What are the key lessons of the formulation of the five principles for today's world? Beyond differences of cultures, histories and political systems, peace is possible based on shared principles rooted in our common humanity, rationality and spirituality.