“He was aware of the enemy’s designs.” “Conscious of his fate, he boldly approached the furious beast.” Conscious relates to what is within our own mind; aware to what is without.
Continual, Continuous
Continuous implies uninterrupted, unbroken. Continual relates to acts that are frequently repeated. “The continuous ride is often finished in five hours, but owing to continual delays we were eight hours on the way.”
The Irishman who brandished his club and, exclaimed that he was open to conviction, but he would like to see the man that could convince him, used a form of argument that was most convincing, but failed in his discrimination of language. Convict refers to the outer condition, and generally applies to something wrong; convince, which may be used of either right or wrong, refers to the judgment.
Custom, Habit
Habit is a tendency which leads us to do easily; custom grows out of the habitual doing or frequent repetition of the same act. Custom refers to the usages of society, or of the individual; habit refers more frequently to the individual acts. “Ill habits gather by unseen degrees.”
“Man yields to custom as he bows to fate,
In all things ruled— mind, body, and estate.”
Want, Need
These words are often used interchangeably, but should be discriminated. Need implies the lack; want also implies the lack, but couples with it the wish to supply the lack. “Some men need help, but will not ask for it; others want help (that is, they need help, or think they do, and ask for it) and get it, too.”