Alquist Timeline and Summary

Alquist is the head of construction at R.U.R.
He is the one human spared when the Robots kill everyone on earth.
Since Helena destroyed the formula for creating robots, Alquist tries to reconstruct it so life on earth won't completely die out.
He eventually succeeds in creating the secret of life. Also, coincidentally, Robot Helena and Robot Primus gain souls and learn to love just then. So Alquist is happy because life and love will go on.