66. Many are those who have died
for speaking the truth, many, too,
have been subjected to torments for
not wishing to still the voice that
speaks inside them.

67. Do not think that heaven has sent
only those that speak of the spirit, or
of love and morality; no, it has also
sent those who offered the fine fruits
of science, those bits of knowledge
that give light to the lives of men, that
lighten their burdens and relieve their
distress. All of them have been My
envoys.