One example that Antony gives to prove that Caesar was not ambitious was that he was bringing in prisoners and giving money to Rome. Other examples given were that when the poor cried Caesar cried too and that he refused the crown 3 times.
Explanation: Clearly Jack is using STEM for his plan so making sure that his plan works could possibly be the answer. I mean if you were creating a project you would want to make sure that it works and that you checked your STEM skills to go forward with the plan.