Why is it that a large majority of Hindus do not inter-dine and do not inter-marry? Why is it that your cause is not popular? There can be only one answer to this question, and it is that inter-dining and inter-marriage are repugnant to the beliefs and dogmas which the Hindus regard as sacred.

Caste may be bad. Caste may lead to conduct so gross as to be called man's inhumanity to man. All the same, it must be recognized that the Hindus observe Caste not because they are inhuman or wrong-headed. They observe Caste because they are deeply religious.

Caste is not a physical object like a wall of bricks or a line of barbed wire which prevents the Hindus from co-mingling and which has, therefore, to be pulled down. Caste is a notion; it is a state of the mind.

B. R. Ambedkar Quotes