Fighting is certainly a deeply ingrained instinct in the human racethe masculine portion.

They have all helped both to fix our strongest and most constant interests upon politics, and to ingrain the mental habits proper to politics, far more deeply than any other, into our general constitution and inmost character.

The idea that women are the aggressors, particularly in criminal amours, is curiously ingrained in the literature of ancient Greece.

In such studies as piano-playing, vocalizing and pronunciation of foreign words, see that your first performance is absolutely right, then as the expressive movements are repeated, they will be more firmly ingrained because of the deepening of the motor pathways.

In men as in animals, the pleasant experiences of love and marriage become gradually ingrained in the brain, and when a youth reaches the age for love-making the memory of ancestral amorous experiences courses through his nerves vaguely but strongly.