It's a bit tricky to say definitively what three forces are most important in science, as it depends on what you're looking at. However, here are three that are important in different ways:

1. The Four Fundamental Forces of Physics: These are the forces that govern everything in the universe:

* Strong Nuclear Force: Holds the nucleus of atoms together.

* Weak Nuclear Force: Responsible for radioactive decay.

* Electromagnetic Force: Governs interactions between electrically charged particles, including magnetism and light.

* Gravitational Force: The force of attraction between any two objects with mass.

2. The Force of Science Itself: This refers to the relentless drive to understand the universe through observation, experimentation, and critical thinking. It's the force behind scientific progress and discovery.

3. The Force of Community: Science is a collaborative effort. The forces of communication, collaboration, and open sharing of knowledge are essential for scientific progress.

Let me know if you'd like me to expand on any of these forces, or if you have a specific area of science in mind.