Take not gain or loss to heart.
what man holds high
comes to nothing.

you are not your gain neither are you your loss. Gain and loss are external to you, things with which your eternal soul is not concerned. All gains and losses pass away at the time of death. Do not waste even a moment on gains and losses when death is plucking your ears saying, "Live! I am coming."

~I Ching Wisdom Volume One by Wu Wei