The sentences related to friendship are:
Sincere friendship will not be diluted by the barrier of time. Past commitments will not change because of the long years.
Friendship is like flying a kite. You are here and I am there. You hold me, I hold you. Closely connected with each other, look up to each other deeply. It is a kind of beauty, a simple and gorgeous beauty.
Friendship is not a pile of flowery words, but a warm greeting; Friendship is not a perfunctory hug, but a knowing look.