Columbia subject headings:
Cosmology.
Human beings.
Intellect.
Life on other planets.
Science--Philosophy.
Teleology.
Harvard subject headings:
Cosmology.
Human beings.
Intellect.
Life on other planets
Science--Philosophy
Teleology.
Princeton subject headings:
Cosmology.
Human beings.
Intellect.
Life on other planets.
Science--Philosophy.
Teleology.