老师
Nature is a wonderful teacher, and if we will only be patient and observe, she will reveal her secrets to us.
Nature is the greatest teacher and I learn from her best when others are asleep.
The land is our greatest teacher; we must listen to it and learn from it.
The ocean is our greatest teacher—if we listen carefully, it will show us how to farm its bounty responsibly.
The forest is a teacher—if we are willing to learn.
The dead are our teachers, if we know how to listen.
Nature is the best teacher; it has already done the experiments, we just have to interpret them.
The night is a great teacher, but the stars are its lessons.