Believe what you see and half of what you hear.
Or in simpler terms, actions are better than words.
"I promise I'll save you all—" He grinned. "I promise we'll all get out of here safe and sound!"
Samuel remembered the words he had spouted. Empty promises created from faith. He solely believed that faith will create truth—like how the scientists believed they could do seemingly the impossibly ridiculous and prove it right to the world. Faith, they had—and truth, they created. All those inventions were the fruit of all their faith. If there's anything Samuel learned from all the significant figures who contributed to the world of science, it would be to have faith.
Because faith will be your driving force to create truth.