There are no limits on true self-giving. It is not just to those one likes that one makes the offering. This involves a love that issues from the very CENTER of the person's being, directed to the CENTER of the other person's being, a love that gives ALL that the person is in order to foster the other person's life, a love that is offered to EVERYONE, without exception and without condition. The love is not offered to people because they are one's friends; people become "friends" because one loves them.
And, if we are unwilling to practice the gift of contemplation and find time for solitude, we miss so much along the way. Admiral Byrd's journal is filled with the fruits that silence brings:
I took my daily walk at 4 p.m. today in -89 degrees of frost ... I paused to listen to the silence ... The day was dying, the night being born -- but with great peace. Here were imponderable processes and forces of the cosmos, harmonious and soundless. Harmony, that was it! That was what came out of the silence -- a gentle rhythm, the strain of a perfect chord, the music of the spheres...