Doubts discussed, vi. 10; vii. 75; ix. 28, 39; xii. 5, 14. Duty, all-importance of, vi. 2, 22; x. 22. Earth, insignificance of the, iii. 10; iv. 3 (par. 1, sub f.); vi. 36; viii. 21; xii. 32. Earthly things, transitory nature of, ii. 12, 17; iv. 32, 33, 35, 48; v. 23; vi. 15, 36; vii. 21, 34; viii. 21, 25; x. 18, 31; xii. 27. Earthly things, worthlessness of, ii. 12; v. 10, 33; vi. 15; vii. 3; ix. 24, 36; xi. 2; xii. 27. Equanimity, x. 8. Example, we should not follow bad, vi. 6; vii. 65. Existence, meanness of, viii. 24. Existence, the object of, v. 1; viii. 19. External things cannot really harm a man, or affect the soul, ii, 11 (l. 22); iv. 3 (par. 2, sub f.); 8, 39, 49 (par. 2); v. 35; vii. 64; viii. 1 (sub f.); 32, 51 (par. 2); ix. 31; x. 33. Failure, x. 12. Fame, worthlessness of, iii. 10; iv. 3 (l. 45), 19, 33 (l. 10); v. 33; vi. 16, 18; vii. 34; viii. 1, 44; ix. 30. Fear, what we ought to, xii. 1 (l. 18). Fellowship. _See_ Mankind. Few things necessary for a virtuous and happy life, ii. 5; iii. 10; vii. 67; x. 8 (l. 22). Flattery, xi. 18 (par. 10). Formal, the, and the material, iv. 21 (par. 2); v. 13; vii. 10, 29; viii. 11; ix. 25; xii. 8, 10, 18. Future, we should not be anxious about the, vii. 8; viii. 11; ix. 25; xii. 1. Gods, perfect justice of the, xii. 5 (par. 2). Gods, the, vi. 44; xii. 28. Gods, the, cannot be evil, ii. 11; vi. 44. Good, the, ii. 1. Habit of thought, v. 16. Happiness, what is true, v. 9 (sub f.), 34; viii. 1; x. 33. Help to be accepted from others, xii. 7. Heroism, true, xi. 18 (par. 10). Ignorance. _See_ Wrong-doing. Independence. _See_ Self-reliance. Indifferent things, ii. 11 (sub f.); ix. 39; vi 32; ix, 1; (l. 30). Individual, the. _See_ Interests. Infinity. _See_ Time. Ingratitude. _See_ Mankind. Injustice, ix. 1. Intelligent soul, rational beings participate in the same, iv. 40; ix. 8, 9; x. 1 (l. 15); xii. 26, 30. Interests of the whole and the individual identical, iv. 23; v. 8 (l. 34); vi. 45, 54; x. 6, 20, 33 (sub f.); xii. 23 (l. 12). Justice, v. 34; x. 11; xi. 10. Justice and reason identical, xi. 1 (sub f.). Justice prevails everywhere, iv. 10. Leisure, we ought to have some, viii. 51. Life, a good, everywhere possible, v. 16. Life can only be lived once, ii. 14; x. 31 (l. 11). Life, shortness of, ii. 4, 17; iii. 10, 14; iv. 17, 48 (sub f.). 50; vi. 15, 36, 56; x. 31, 34. Life to be made a proper use of, without delay, ii. 4; iii. 1, 14; iv. 17, 37; vii. 56; viii. 22; x. 31 (l. 14); xii. 1 (l. 18). Life, whether long or short, matters not, vi. 49; ix. 33; xii. 36. Magnanimity, x. 8. Mankind, co-operation and fellowship of, one with another; ii. 1 (l. 11), 16; iii. 4 (sub f.); 11 (sub f.); iv. 4, 33 (sub f.); v. 16 (l. 11), 20; vi. 7, 14 (sub f.), 23, 39; vii. 5, 13, 22, 55; viii. 12, 26, 34, 43, 59; ix. 1, 9 (sub f.), 23, 31, 42 (sub. f.); x. 36, (l. 16); xi. 8, 21; xii. 20.