What are the four-word idioms about "teacher"

There are people who are unknown, tireless and have both ability and political integrity.

The spring breeze melts the rain, moistens things silently, and seduces them subtly and affably.

Praise the teacher's statement:

1 You are knowledgeable, like the eternal Avenue of Stars, leading us to explore the secrets of science. (physics teacher)?

You are passionate, like a humorous prose poem, leading us to explore the field of inspiration.

Your witty words, like a continuous ladder of knowledge, lead us into the palace of literature.

You have a gift in your heart, like God's eyes to explore the world and lead us to enjoy endless rivers.

You are thoughtful, like a steady stream of mathematics, which inspires us to expand endless mysteries.

You are up and down in the sky, like a continuous gurgling stream, leading us to the vast universe.

You are very persuasive, like an evolutionary process of layer upon layer, guiding us to explore infinite mysteries.

You are unpretentious and have inexhaustible profound wisdom, which guides us to climb the peak of science forever.

You are flexible and changeable, like a wonderful and vivid English letter, leading us into an infinite country. (English teacher)