Earlier everything was reused or recycled in another way. We were able to do so because there was stability and standard. Commonly used appliances were all made subject to common standards. So irrespective of the manufacturer, servicing was possible anywhere and spares were also possible. So people could re use defective appliances by getting them repaired. Even after its extended life time it could be sold for scrap value. Some useful components could be extracted and reused elsewhere.
Now the sole aim is profit. So durability and stability is not a concern. Manufacturers and traders want fast churning. So they do not promote spares nor they make things under common standard. Within short period a new model is made with very minute changes, but marketed as most modern , and tempting people to throw the previous model.
Slowly this has spread to dealings human beings and relationships also. Old parents are thrown out.Spouses are thrown out after some period and new relationships made.
However what we are not realising is that one day even w get thrown out.
Only the sou is permanent.
In this regard, Bhagavat Gita holds more relevance now, because it has predicted thousands of years that only 'soul' is permanent and soul 'sheds' the physical body to take up anew body. Our physical body gets thrown out by the permanent soul like a person sheds old worn out clothes and adorns a new one.
The relevant Gita verse is as below:
"vasansi jeernaani yathaa vihaaya
navani grihnati naro parani
tathaa sharirani vihaya jeernany
anyani sanyati navaani dehi "
(As a person puts on new garments, giving up old ones, similarly, the soul accepts new material bodies, giving up the old worn out and useless ones.)
Every item will have its own usefulness. we may be getting mechanised items these days but old versions should be kept in the house without throwing it out as it may come in handy on one day. But if you go on keeping everything with you the house will become too crowded. So I fully agree with author's statement of think more than twice before throwing any items from our house.
But in modern days, space in almost every house is very limited and so the things which have become obsolete cannot be preserved for long. Hence, we are compelled to either exchange them at a much lower value or simply sell them out to the junk dealers.
But it has one good side as well. In the days of bitter unemployment, many junk dealers are making a living with our discarded items.:)
Every day is a new day for learning something new.
A blunt knife or rusted knife can't be useful for anything just for the sake we call it as the knife similar to PayTM series or Sachin or Virat records.