Dr. Lee kept his decision and his promise. He used the device only for scientific purposes, and only with proper authorization and supervision.
He participated in several experiments and studies, where he and his colleagues tested the device and its capabilities.
They explored different timelines, where they observed and recorded various events and phenomena.
They learned a lot about the device and its effects and about the nature of time and reality.
They made some discoveries and breakthroughs, and also some mistakes and failures.
They faced some challenges and difficulties, and also some opportunities and benefits.
They had some fun and excitement, and also some fear and danger.
They did their best to be careful and responsible, and to avoid any harm or damage.
They did their best to be good scientists and good people.
They did their best to do the right thing.
But Dr. Lee was not completely satisfied. He still felt a sense of curiosity and wonder about the device and its implications.
He still wondered if he could use it again, and explore other timelines.
He still wondered if he could change the past, or influence the future.
He still wondered if he could meet himself, or other versions of himself.
He still wondered if he could find out the secrets of the universe, or the meaning of life.
He still wondered if he could have some fun or some adventure.
He still wondered if he could do anything he wanted or anything he imagined.
He was still tempted to try it.
He was still tempted to use the device again, and see what would happen.
But he also remembered his decision and his promise. He remembered that the device was not a toy, but a powerful tool.
He remembered that it had risks and dangers and that it could have unforeseen consequences.
He remembered that it could create paradoxes or anomalies and that it could affect the fabric of reality.
He remembered that it could cause harm or damage and that it could violate the laws of nature.
He remembered that it could be misused or abused and that it could fall into the wrong hands.
He remembered that it could be a curse or a weapon.
He was still afraid to try it.
He was still afraid to use the device again and see what would happen.
He decided to resist his temptation. He decided to stick to his rules and regulations. He decided to honor his ethics and morals. He decided to use the device only for scientific purposes, and only with proper authorization and supervision.
He decided to be a good scientist and a good person.