Variable Quotes - page 4
But now if the gifted soul be not of taciturn nature, be of vivid, impatient, rapidly productive nature, and aspire much to give itself sensible utterance,-I find that, in this case, the field it has in England is narrow to an extreme; is perhaps narrower than ever offered itself, for the like object, in this world before. Parliament, Church, Law: let the young vivid soul turn whither he will for a career, he finds among variable conditions one condition invariable, and extremely surprising, That the proof of excellence is to be done by the tongue. For heroism that will not speak, but only act, there is no account kept.
Thomas Carlyle
System costs can be considered in many different ways. For example, the cost for making the system and the cost for operating it may be used as a basic for judging the total cost. The total cost may also be arrived at in another fashion, as, for example, the sum of the fixed cost, variable cost, past investment and other charges. Furthermore, in many cases where systems engineering is required several time phases are involved for which the cost factors may be significant, such as the study phase, the breadboard phase, the prototype phase, and the production phase.
Harold Chestnut