This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...s that final goal or end to which all lesser goals are the means — and it sets the standard by which all lesser goals are evaluated. An organism’s life is its standard of value : that which furthers its life is the good, that which threatens it is the evil.

Without an ultimate goal or end, there can be no lesser goals or means: a series of means going off into an infi
nite progression toward a nonexistent end is a metaphysical and epistemological impossibility. It is only an ultimate goal, an end in itself, that makes the existence of values possible.
read full book block explorer