A teacher takes responsibility of your growth
A Guru makes you responsible for your growth

A teacher gives you things you do not have and require
A Guru takes away things you have and do not require

A teacher answers your questions
A Guru questions your answers

A teacher helps you get out of the maze
A Guru destroys the maze

A teacher requires obedience and discipline from the pupil
A Guru requires trust and humility from the pupil

A teacher clothes you and prepares you for the outer journey
A Guru strips you naked and prepares you for the inner journey
    
A teacher is a guide on the path
A Guru is a pointer to the way

A teacher sends you on the road to success
A Guru sends you on the road to freedom

A teacher explains the world and its nature to you
A Guru explains yourself and your nature to you

A teacher makes you understand how to move about in the world
A Guru shows you where you stand in relation to the world

A teacher gives you knowledge and boosts your ego
A Guru takes away your knowledge and punctures your ego

A teacher instructs you
A Guru constructs you

A teacher sharpens your mind
A Guru opens your mind

A teacher shows you the way to prosperity
A Guru shows the way to serenity

A teacher reaches your mind
A Guru touches your soul

A teacher gives you knowledge
A Guru makes you wise

A teacher gives you maturity
A Guru returns you to innocence
   
A teacher instructs you on how to solve problems
A Guru shows you how to resolve issues

A teacher is a systematic thinker
A Guru is a lateral thinker

A teacher will punish you with a stick
A Guru will punish you with compassion

A teacher is to pupil what a father is to son
A Guru is to pupil what mother is to her child

One can always find a teacher
But a Guru has to find and accept you

A teacher leads you by the hand
A Guru leads you by example
   
When a teacher finishes with you, you graduate
When a Guru finishes with you, you celebrate

When the course is over you are thankful to the teacher
When the discourse is over you are grateful to the Guru

Source : Sri Sri Ravi Shankar