Nations and borders are made by humans, with contingent and often arbitrary origins. They are temporary, and could have been otherwise. Many borders have changed across history. Empires have collapsed. Humanity, however, is real. For we share our genetic makeup with all humans
The Japanese concept of Kaizen teaches that small incremental improvements can have a profound effect over time. We should all strive to leave the world better than we found it be it through relieving the suffering of others, creating works of art, or passing along knowledge.
We should only compare ourselves with the person we were yesterday. Making the world a better place starts with the person in the mirror. We are all capable of improving the world around us by sharing our creativity & knowledge or by simply relieving the suffering of others.
Honesty is sometimes seen as something of a burden. It is, but carrying that burden brings numerous advantages, such as trust from your companions and changes for the better in yourself.
Empirical evidence guides rational thought. The universe is a wondrous and changing place and there is much we don't know. Only by seeking evidence and being willing to incorporate what we discover will we advance our collective knowledge.