16 Famous Sayings by Chanakya - Scores 7/16 in today's world

I am not sure if these Sayings are actually from Chanakya but some of them are worth pondering. I am listing the ones that make sense in today's world, for most of the normal people around (May be they make more sense to me), followed by the ones which seem outdated:

1) "Learn from the mistakes of others... you can't live long enough to make them all yourselves!!" - Chanakya - Makes sense to me.
2) "Even if a snake is not poisonous, it should pretend to be venomous." - Chanakya - Makes sense when you know it's coming from Chanakya.
3) "Before you start some work, always ask yourself three questions - Why am I doing it, What the results might be and Will I be successful. Only when you think deeply and find satisfactory answers to these questions, go ahead." - Chanakya - If only Chanakya had copyrighted this thought in the last 20 years, he would have been a billionaire via publishing in thousands of management Books.
4) "As soon as the fear approaches near, attack and destroy it."- Chanakya - Nothing but agree.
5) "Once you start a working on something, don't be afraid of failure and don't abandon it. People who work sincerely are the happiest." - Chanakya - Unless your Boss (Office or home) tells you to abandon it:)
6) "The fragrance of flowers spreads only in the direction of the wind. But the goodness of a person spreads in all direction." - Chanakya - Profound.
7) "Books are as useful to a stupid person as a mirror is useful to a blind person." - Chanakya - I have seen that myself and quite closely.

The ones which may not be true to a lot of extent in today's world, not unless you are really in a messy/abnormal surrounding:
1) "A person should not be too honest. Straight trees are cut first and Honest people are screwed first."- Chanakya - I may not believe on this, unless I am actually screwed on being a non-believer for this one.
2) "The biggest guru-mantra is: Never share your secrets with anybody. It will destroy you." - Chanakya - Hmm, especially with your wifes?
3) "There is some self-interest behind every friendship. There is no friendship without self-interests. This is a bitter truth." - Chanakya - It depends as to who you call a friend. May be for friendships that come to be in workplace or when you meet someone for business. You make real friends in your school and college days, which should be an exception to this Saying.
4) "The world's biggest power is the youth and beauty of a woman." - Chanakya - Probably it has changed in today's world. It is information which is the strongest now, well open to debate/comments.
5) "God is not present in idols. Your feelings are your god. The soul is your temple." - Chanakya - Does not make me a non-believer but I feel there is much to God than feelings and soul.
6) "A man is great by deeds, not by birth." - Chanakya - Inheritence makes a BIG difference, ask all those self made men.
7) "Never make friends with people who are above or below you in status. Such friendships will never give you any happiness." - Chanakya - It feels arrogant to say so. Also, it is a bit contradictory to the saying that all friendships have self interest. That would make me have more friends upstream.
8) "Treat your kid like a darling for the first five years. For the next five years, scold them. By the time they turn sixteen, treat them like a friend. Your grown up children are your best friends." - Chanakya - Does not go in today's world and Chanakya did not explain the most crucial adoloscent years i.e. 10 to 16.
9) "Education is the best friend. An educated person is respected everywhere. Education beats the beauty and the youth." - Chanakya - Ideally yes, but not everytime.