Final answer:
Existentialism is developed through the beliefs that thinking is the first act of existence, all beings have an essential quality, the essential qualities of beings are given by God, and man is responsible for creating his own meaning.
Step-by-step explanation:
The correct order of the beliefs or assertions that reflect the development of Existentialism are:
- Thinking is the first act of existence.
- All beings have in them an essential quality.
- The essential qualities of beings are given by God.
- Man is responsible for creating his own meaning.