Imam A'zam Abu Hanifa, Imam Maalik, Imam  Shaafi and Imam Ahmed bin Hambal (radi Allahu anhumul ajma'in)are  the leaders of the four schools of Fiqh (Islamic Law).
 "FIQH" is the Science of Islamic  Law or Jurisprudence. It refers to the collection and compilation of Islamic  laws based on the Holy Quran and the Sunnah of Sayyiduna Rasulullah (sallal  laahu alaihi wasallam). These great Muslims devoted themselves to the task  of developing the science of understanding Islamic Law and its practise.
 Although they differed from each other, all  the four great Imams had great respect for each other. They were all teachers  and pupils of each other for the common goal of enhancing their knowledge about  Islam. All of them were unanimous on Aqa'ids (Islamic Beliefs). We, as Muslims,  must respect the different Sunni schools of thought.   
 
Imam Maalik (radi Allahu anhu) was born in 93 A.H. He  was born in the period of the Ummayyad Dynasty. His full name is Maalik bin  Anas.
  Imam Maalik (radi Allahu anhu) had many illustrious  teachers. Most of them were great Taabi'i scholars who learnt under the Sahaba.  Some of his teachers used to teach in Masjidun Nabawi. He learnt how to read the  Holy Quran from Sayyiduna Abu Radim Nafi Abdur Rahman (radi Allahu anhu).
 Imam Maalik (radi Allahu anhu's) fame spread far and wide  and many great scholars sat in his company learning Ahadith and other Islamic  legal issues. Some 1300 scholars sat at his feet. They copied the "MUWATTA" from him. The "Muwatta" is a collection of Ahadith by Imam Maalik (radi Allah anhu). Many of his pupils copied the Muwatta, the famous among  them being: Sayyiduna Yahya bin Yahya Al Masmudi, Sayyiduna ibn Wahab Abu  Mohammed Abdullah and Sayyiduna Abi Abdullah Abdur Rahman Abdur Rahman (radi  Allahu anhumul ajma'in).
AS A TEACHER
He was a great "Muhaddith" (A Scholar of Hadith). He was  very careful in selecting Hadith, and after examining them thoroughly used to  record it in his Muwatta.
He passed away on the 11th of Rabi-ul-Awwal in the year 179 A.H.  He was 86 years old. Imam Maalik (radi Allahu anhu) is buried in Janatul  Baqi in Madinatul Munawwarah.
He never wore shoes whilst in Madinatul Munawwarah. He  never sat on a horse or used the toilets in this blessed city. He always went  out of the city to relieve himself. He used to kiss the old buildings and the  remains of old foundations, saying that Sayyiduna Rasulullah (sallal laahu  alaihi wasallam) may have walked by, touched it or saw it. Such was his  adoration for Sayyiduna Rasulullah (sallal laahu alaihi wasallam).