Reason is a tool of critical thought that limits the truth of a statement according to the strict tests of the scientific method. There is no great mystery to morality. Most freethinkers employ the simple yardsticks of reason and kindness. This also embraces a respect for our planet, including the other animals, and feminist principles of equality. Moral dilemmas involve a conflict of values, requiring a careful use of reason to weigh the outcomes.
Freethinkers try to base actions on their consequences to real, living human beings.
Freethinkers know that meaning must originate in a mind. Since the universe is mindless and the cosmos does not care, you must care, if you wish to have purpose. Individuals are free to choose, within the limits of humanistic morality. The complexity of life requires an explanation. Freethinkers recognize that there is much chaos, ugliness and pain in the universe for which any explanation of origins must also account.