With reference to Buddhism, consider the following statements:

1. The concept of the Middle Way in Buddhism refers to a balanced path between extreme asceticism and indulgence.

2. The Buddhist doctrine of Anatta (non-self) denies the existence of a permanent soul.

3. The Mahayana branch of Buddhism emphasizes the role of Bodhisattvas who delay their own enlightenment to help others.

Which of the statements given above are correct?