Source: Medieval castles (2005), Ch. 1 : The Great Tower : Norman and Early Plantagenet Castles
“The system of fortification by wall and towers may be made safest by the addition of earthen ramparts.”
Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter V, Sec. 5
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Vitruvius 203
Roman writer, architect and engineer -80–-15 BCRelated quotes
Source: Medieval castles (2005), Ch. 1 : The Great Tower : Norman and Early Plantagenet Castles
Source: Medieval castles (2005), Ch. 2 : The Castle as Fortress : The Castle and Siege Warfare
Source: Medieval castles (2005), Ch. 4 : The Castle as Symbol and Palace

This is an advantage which scientists enjoy over most other people engaged in intellectual pursuits, and they enjoy it at all levels of capability. To be a first-rate scientist it is not necessary (and certainly not sufficient) to be extremely clever, anyhow in a pyrotechnic sense. One of the great social revolutions brought about by scientific research has been the democratization of learning. Anyone who combines strong common sense with an ordinary degree of imaginativeness can become a creative scientist, and a happy one besides, in so far as happiness depends upon being able to develop to the limit of one's abilities.
1960s, Lucky Jim, 1968

“The body of the legal system needs a soul and sometimes even an additional soul”
see: Neshama yeterah ba-mishpaṭ / Mozaiḳah, 2003
Source: Medieval castles (2005), Ch. 1 : The Great Tower : Norman and Early Plantagenet Castles

“What may appear as a towering peak to one may seem but an ordinary eminence to another.”
[Life and Scientific Work of Peter Guthrie Tait: supplementing the two volumes of Scientific papers published in 1898 and 1900, Cambridge University Press, 1911, 1-2]