Which one of the following is not the whole truth according to the passage?

The correct answer is "Necessity is the mother of invention."

Explanation and Analysis:

The question asks to identify which statement is not the whole truth according to the passage's context. While "Necessity is the mother of invention" is a well-known general proverb, when evaluating statements based strictly on context or reading comprehension passages regarding human desires and contentment:

1. Statements about human desires for beauty, grace, and contentment highlight the psychological and philosophical aspects of human nature.

2. The phrase "Necessity is the mother of invention" focuses solely on practical utility and utilitarian creation, which captures only a partial aspect of human motivation and drive (ignoring aesthetic, spiritual, and emotional desires).

Therefore, describing human creation solely through the lens of necessity ignores human desires for beauty, art, and grace, making it not the whole truth.