who are our teachers indeed??

1.  teacher is like the salt.

each piece of information or knowledge would'n be so taste, if we have no salt or seasoning as well. 

so "teacher as the salt is head to everything" in Russian , and in English we can find like "Rarely using his loaf of bread" 

2.  teacher is a cook.

he can make the filling for our empty pasties. So the filling will make our future.

3.  teacher is the pink sunglasses.

travelling with our techer into the science seems very easy thing, but when without him the knowledge becomes so difficult

4. teacher is a gardener.

children are flowers of life (everybody knows that). so this english proverb works here "you have made your bed, and you must lie on it"