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50 Science is not, therefore, an accumulation of isolated facts, or of facts torn from their natural relations. To know a thing scientifically is to know it in just relation to all other things. For science unites, and demands the exercise of our various faculties, as well as of our senses.

Science is proved knowledge. It is the study of causes and their relations applied to facts; but such proof can only be obtained by search which is in accordance with the laws of Nature—laws which are gradually discovered by our race.

Natural law is deduced from all the facts of human experience. In searching for and collecting which we must recognise the conditions under which we are placed, the limitations of the present phase of our intellectual powers, the gradual growth of conscience.

Science being proved truth, scientific method requires that all the factors which concern the subject of research shall be duly considered, in order to arrive at correct thought respecting the special subject of inquiry.

The application of scientific method necessarily varies, therefore, according to the subject under investigation.