Source: According to internet this quote is by Brigitte Nicole, but no authentic source is yet found.

Meaning: In this selfish world mostly people come close or make relations for some reasons or motives, but to get a person, companion or friend, who just like to be with us without any selfish motives is the most beautiful thing.

I know it’s very difficult to find such person these days, but if luckily we got such person in our life, we must care about them and not hurt them as getting such a person is most difficult thing in this world.