Expansion of ideas on Necessity is the mother of invention and You can't have your cake and eat it

Necessity is the mother of invention

       The proverb Necessity is the mother of invention is very popular. This means invention is to be happened when there is some urgent needs.

 For example whole world is suffered by corona virus. It is found to be so dangerous as because there is no medicine available yet to fight against this virus which leads to invent the medicine as early as possible. That is why scientist of all over the world are trying to give their best to find the medicine to get rid of the corona virus permanently.

So from we come to know that invention starts when there is necessity.

Necessity is the mother of invention

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You can't have your cake and eat it

         The meaning of this proverb means if anyone get two opportunities are too good to accept. He wants both opportunities but unwillingly he had to accept any one. This can be more clear from this example .

         One computer engineer who was working in the well-known company. He didn’t get promotion for a longer time. So he applied in another company and selected there. He was suppose to give a resignation letter to the first company. But on the same day company gave him promotion and made him team leader of the new project. Though he was confused what to do. Then he decided to continue with his first company only.  

         So it is the meaning of the above proverb. So one must think calmly and take proper decision. 

      You can't have your cake and eat it