When you begin a new sentence always begin that sentence with a capital letter. Each sentence is a statement of a complete thought and is independent of every other sentence. The use of the capital letter indicates this independence and calls attention to the fact that you are beginning a new thought.
467. Begin every line of poetry with a capital letter. Sometimes in poetry, the line is too long to be printed on a single line and must be carried over into another line; in this case, the first word of the second line does not begin with a capital letter.
468. Use a capital for every proper noun. This includes names of persons, countries, states, towns, cities, streets and geographical names, as the names of seas, lakes, mountains, rivers, etc.
469. The words North, South, East and West are capitalized when they are used to refer to geographical divisions. When these words simply refer to the points of the compass, they should not begin with a capital.
470. The pronoun I and the interjection O should always be capitals. Never write the pronoun I with a small i.
471. Every proper adjective should begin with a capital letter. Proper adjectives are adjectives derived from proper nouns. For example: the Marxian philosophy, the Darwinian theory, Indian money, Japanese labor, etc.
472. Always begin the names of the months and the days of the week with capital letters. For example: January, February, August, Monday, Tuesday, Friday, etc.
473. Use a capital letter for every name or title of the Deity. For example: God, Jehovah, Christ, Jesus, etc. It is also customary to capitalize all personal pronouns referring to God or Christ.
474. Begin with a capital letter names of all religious sects and political parties, also all adjectives derived from them. As for example: Christian Church, Methodism, Republican Party, Mohammedan, Socialist, etc.
475. Begin the names of all things spoken of as persons with a capital. In poetry or poetic prose we often speak of war, fame, death, hope, fancy, liberty, etc., as persons. Whenever these words are used in this way they should begin with a capital letter.