Nature of things do not change
Even things do not change
It’s the mindset that changes
It’s the way in which we think, the approach
The way of doing things that changes
Over a period of time thinking changes
Thinking changes from present generation to the next
From one generation to another

Definitely nature of things has never changed
It has remained constant for over a period of time
A long time has gone by since the nature of things has not changed

When a shadow of doubt gets raised in the mind
There is an uncertainty about something followed by confusion
When each of these things become a part of routine
Then at that point of time,
Then during that time
Everything becomes extremely difficult,
Difficult to decide,
Decide upon as to the proper line of action, which needs to be taken
Difficult since thoughts are not stable and neither settled.

Agreed and accepted
The fact that over a period of time nature of things change
Definitely because the next generation has it’s own set of thoughts
Thoughts different from prior generation
A generation gap is always there, it remains
Enabling the previous changes to be incorporated and accepted in the present.

Definitely over a period of time things do change.