A poem: Trust, betrayal and complexity of human nature

If I have learnt something, it is the complexity of human nature
If I have learnt something, it is to understand the differences in us
Sometimes I wonder what makes us - nature or nurture?
Must it be one? We can find in ourselves many features
When I look deeply into myself, I see a lot of contradictions
It is the same in everyone, but in different degrees and directions
How can someone claim to help and steal from you at the same time?
And be vexed towards you for not showing appreciation
Even when he has it all and you only have a dime
How can someone hold you down and ask you to be grateful?
How can you understand when there is something gainful?
Maybe I am the foolish one, of cause there is always something
Something to gain - power, money, ego and authority.  Stretching?