It is unclear what is meant by "philosophy of Islam", since Islamic philosophy did not really engage Shiite Islam; it was primarily done by Sunni Muslims.
If the question is asking about religious differences, the key really lies in successorship to the Prophet Mohammed, both in his earthly domains (i.e. the ruler of the Islamic State) and his spiritual qualities (i.e. his perfection as a person and instrument of God). The Sunnis believe that revelation ended with Mohammed and that the Islamic States should be ruled by qualified individuals chosen in any viable mechanism. The Shiites believe that revelation continued after Mohammed through the lips of the Infallible Imams (of which there were 5, 7, 11, or 12, depending on which form of Shiite Islam a person practices) and that only those appointed by God from Mohammed's family have the right to rule Islamic States.
Both Shiites and Sunnis are right Muslims. They differ in minor issues that are not relevant to the basic Islam rules and instructions. Refer to related question below.
Both Shiites and Sunnis are correct followers of Islam. They just differ in minor Islam issues but not in main Islam pillars and principles. Refer to related question below.
They differ in minor and side issues but the same in all Islam religion basics and fundamentals. Refer to question below.
Mainly Sunnis and Shiites. Refer to question below.
Sunnis and Shiites. Refer to question below.
Sunnis and Shiites. refer to question below.
Mainly Shiites and sunnis. Refer to question below for information.
Shiites and Sunnis. However, they are not splits as for example in Chritianity different denominations. Sunnis and Shiites differe in minor Islam details. Refer to question below.
Mainly Shiites and Sunnis. Refer to question below
Mainly Shiites and Sunnis. refer to related question below.
The Sunnis belong to Islam and Shiites are a false sect who claim to be part of Islam.
It is Islam religion. Muslims are belonging to the main two different schools: Shiites and Sunnis.