Changes

'''Substance''' in the ordinary sense of the word, in everyday usage, is that of which a thing consists; physical [[matter]] or material: form and substance. a species of matter of definite [[chemical]] composition, such as:  ''a chalky substance''.  

'''Substance''' in the ordinary sense of the word, in everyday usage, is that of which a thing consists: physical [[matter]] or material form and substance, meaning a species of matter of definite [[chemical]] composition, such as:  ''a chalky substance''.  

In [[philosophy]], "sub-stance" is the essence, the unseen reality that "stands under" or is the foundation of that of which a thing outwardly consists, the real under-lying essence of actual being which is expressed by the changeable "accidents" or visible manifestations or perceptible qualities of the thing, even of persons; hence, physical matter is not of itself the fundamental substance of existence.  

In [[philosophy]], "sub-stance" is the essence, the unseen reality that "stands under" or is the foundation of that of which a thing outwardly consists, the real under-lying essence of actual being which is expressed by the changeable "accidents" or visible manifestations or perceptible qualities of the thing, even of persons; hence, physical matter is not of itself the fundamental substance of existence.