Who is my neighbor?

Luke 10:25-42
What shall I do to inherit eternal life? Love the Lord your God with all your heart and with all your soul and with all your strength and with all your mind, and your neighbor as yourself.
Who is my neighbor? The lawyer asked to Jesus. Jesus said the parable of the Good samaritan. The one who showed him mercy is his neighbor.
Martha are anxious and troubled about many things, but one thing is necessary. Mary has chosen the good portion, which will not be taken away from her.
Why?
Love the Lord is more easy than love our neighbor, for we can not see the Lord now, but it is easy to see the needy neighbor.
How?
Show our love to the needy person whereever I met.