Question: yet this intervening period need not be wasted. it should be used to cut down the obstructions in his character and to fill up the deficiencies in his equipment.
Answer: --> Yet this intervening period need not be wasted. It should be used to cut down the obstructions in his character and to fill up the deficiencies in his equipment.

Question: it is in this, and only in this, that, from the point of view of the proletariat, the danger of state power lies.
Answer: --> It is in this, and only in this, that, from the point of view of the proletariat, the danger of state power lies.

Question: beautiful and exciting exhibition, but there could have been a few more amphibians and reptiles, snakes less to my taste.
Answer:
--> Beautiful and exciting exhibition, but there could have been a few more amphibians and reptiles, snakes less to my taste.