Why are there differences of opinion in the philosophy of Vaishnava sampradayas?

(From "Sampradaya" - click to read more from it.
You can also read the previous page: Is accepting a disciplic succession harmful for the living entity?)
– Why are there differences of opinion in the philosophy of the Vaishnava sampradayas?
– Vaishnavas from all sampradayas have one philosophy.
There are only some differences in some insignificant matters.
All the Vaishnavas accept that the living entity is a separate truth from the Supreme Lord.
All of them have accepted the path of devotional service. (Prema-pradipa Chapter 6)
Another revelation, When did the philosophy of opposing the system of sampradaya start?. Check out the previous page too: Is accepting a disciplic succession harmful for the living entity?. You will benefit from reading the whole work: Sampradaya.And now listen to this sound >>
Harih Om Tat Sat.
Natural Brotherhood (Bhaktivinoda Thakura):

"Gradually, when the offensive portions of the established religions are destroyed, there will be no more differences in the bhajana performed by the various Sampradayas nor any quarrel between them.
Then as brothers, the people of all castes and countries will spontaneously chant the Holy Names of the Supreme Lord together.
At that time, no one will hate anyone or consider others dogeaters; nor will anyone be overwhelmed by the pride of high birth.
The living entities will not forget the principle of natural brotherhood."