Noun
The state or quality of being solid; density; consistency, -- opposed to fluidity; compactness; fullness of matter, -- opposed to openness or hollowness; strength; soundness, -- opposed to weakness or instability; the primary quality or affection of matter by which its particles exclude or resist all others; hardness; massiveness.
Moral firmness; soundness; strength; validity; truth; certainty; -- as opposed to weakness or fallaciousness; as, the solidity of arguments or reasoning; the solidity of principles, triuths, or opinions.
The solid contents of a body; volume; amount of inclosed space.
Source: Webster's dictionaryThe known is finite, the unknown infinite; intellectually we stand on an islet in the midst of an illimitable ocean of inexplicability. Our business in every generation is to reclaim a little more land, to add something to the extent and the solidity of our possessions. Thomas Henry Huxley
Political language... is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind. George Orwell
Political language - and with variations this is true of all political parties, from Conservatives to Anarchists - is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind. George Orwell
Mind, even more deadly to empires than to individuals, erodes them, compromises their solidity. Emil Cioran
One must, I think, be struck more and more the longer one lives, to find how much in our present society a man's life of each day depends for its solidity and value upon whether he reads during that day, and far more still on what he reads during it. Matthew Arnold
For ease and speed in doing a thing do not give the work lasting solidity or exactness of beauty. Plutarch