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Think like a man of action, act like a man of thought.

The present contains nothing more than the past, and what is found in the effect is already in the cause.

In short, intelligence, considered in what seems to be its original feature, is the faculty of manufacturing artificial objects, especially tools to make tools, and of indefinitely urging the manufacture.

Instinct perfected is a faculty of using and even constructing organized instruments; intelligence perfected is the faculty of making and using unorganized instruments.

The present contains nothing more than the past, and what is found in the effect was already in the cause.

Wherever anything lives, there is, open somewhere, a register in which time is being inscribed.