This is a speculative composition topic. Compare and choose between "the most important thing to do" and "the most capable thing to do" in the composition materials. Do what you should do most, thinking that this is a spirit that will lead you to success. Then, when writing, we can scrutinize the connotation of "what should be done most" and distinguish the difference and connection between "what should be done most" and "what can be done most". Analyze the meaning of "this spirit" and clarify the function of "this spirit". The "most important thing to do" may be a problem related to human survival and scientific development, which is extremely difficult and unprecedented. Maybe it's beyond my power now. If you should do it, do it well. This is the spirit of responsibility, mission and dedication of being brave in innovation and being the first in the world, and the fearless struggle spirit of overcoming difficulties and forging ahead. Of course, in daily life, there will also be contradictions that "the most should be done" and it is difficult to take action. For example, whether the elderly should be helped when they fall to the ground is related to the choice of morality, outlook on life and values. When writing, you should buckle "the most important thing to do" and "this spirit" to describe, discuss and express your feelings.