In plain words
The ornaments differ, the gold is one; the colours of the cattle differ, the milk is one; living creatures differ, the jīva is one; castes and codes differ, birth is one.
In the philosophies of these three, humanness alone is one and the same. Śaṅkarācārya went on teaching Advaita and spreading it. Rāmānujācārya, holding that the object and its reflection are two different things, went on keeping them apart. Without the thread there is no cloth. Without gold, no ornaments are made. Though different names are given to the ornaments, the gold in them is one: this the three, for their part, went on accepting with one voice. Even so, in the world these three philosophies, called Advaita, Viśiṣṭādvaita and Dvaita, have led Bhārata into many misconceptions. Taking the Upaniṣadic saying ‘Ekātmā sarvabhūtāntarātma’, Śaṅkara taught that the one Ātma dwells within many forms as the indweller. He went on giving a few examples for this as well. Taking up an ornament, he asked, ‘What is this ornament?’ The answer came that the ornament's name was not known, but the ornament was made of gold. But Śrī Rāmānujācārya said, ‘The gold may be one, but since they have come in different forms, we must regard them as different.’ Śrī Śaṅkarācārya went on teaching the Advaita principle, ‘Ekaṃ eva advitīyaṃ Brahma’. Śrī Rāmānuja: ‘This is not right. Without the object, how can there be a reflection? This is the oneness of the object and its reflection’: explaining it so, he propagated Viśiṣṭādvaita. He gave yet another example for this. There is sugarcane. From it they drew the juice. They gave it the name ‘sugarcane juice’. But with this juice they made many sweet things. Here the sugarcane juice is one, but the forms of the things made with that juice appeared different.