Age of reason,

Definition of Age of reason:

1. Age at which a person acquires (or is deemed in law to have acquired) the capacity to distinguish between right and wrong, and is thus legally capable of committing a civil crime. Typically 18 years. See also legal age.

2. The Enlightenment.

3. (especially in the Roman Catholic Church) the age at which a child is held capable of discerning right from wrong.

How to use Age of reason in a sentence?

1. Heard today its someones birthday, whos long the age of reason past.
2. Its all part of that whole godless scientific method, empirical data, age of reason, enlightenment lah-de-dah we hold so dear.