The supreme maxim in scientific philosophising is this: wherever possible, logical constructions are to be substituted for inferred entities. Bertrand Russell
Criticism is not religion, and by no process can it be substituted for it. It is not the critic's eye, but the child's heart, that most truly discerns the countenance that looks out from the pages of the gospel. John Campbell Shairp
The ease with which barley may be substituted directly for wheat in human food and its usefulness to replace wheat milling by-products as feed in the production of the milk supply render its abundant production important. David F. Houston
Always we must bear in mind that law has to be substituted for power, that care must be taken to serve the interests of law. Fredrik Bajer
Methinks the human method of expression by sound of tongue is very elementary, and ought to be substituted for some ingenious invention which should be able to give vent to at least six coherent sentences at once. Virginia Woolf