For siege works against bold and venturesome men should be constructed on one plan, on another against cautious men, and on still another against the… - Vitruvius

Fresh pitsand, however, in spite of all its excellence in concrete structures, is not equally useful in stucco, the richness of which, when the lime and straw are mixed with such sand, will cause it to crack as it dries on account of the great strength of the mixture. But river sand, though useless in "signinum" on account of its thinness, becomes perfectly solid in stucco when thoroughly worked by means of polishing instruments.

It is not as a very great philosopher, nor as an eloquent rhetorician, nor as a grammarian trained in the highest principles of his heart, that I have striven to write this work, but as an architect who has had only a dip into those studies.

There are also in some places springs which have the peculiarity of giving fine singing voices to the natives, as at Tarsus in Magnesia and in other countries of that kind.