First, what is the title and author of the work to which you refer?
Answer:
This quote means that the person who wrote this quote doesn't think very highly of himself, and he says that what he has accomplished was because of his own hard work.
Answer:
Those technology which were practiced in traditional time is called traditional technology.
Explanation:
The subordinate clause here is 'to which another pronoun refers', and it is called a 'relative clause'.