孤獨的人會孤獨，是因為他畏懼他人。

Lonely people perpetuate their own loneliness through their fear of others.

Lonely people tend to be afraid of meeting others, which ensures they will always be lonely.

Source: Tatoeba

Sentence Composition

1 孤獨 gūdú
  1. lonely
  2. solitary
=2 的 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂兒的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. dì or di in poetry and songs
=2 的 dī a taxi; a cab (abbr. for 的士 dīshì)
=2 的 dí really and truly
=2 的 dì (bound form) bull's-eye; target
3 人 rén person; people

classifiers: 個, 位
=4 會 huì
  1. can; to have the skill; to know how to
  2. to be likely to; to be sure to
  3. to meet; to get together
  4. meeting; gathering
  5. (suffix) union; group; association
  6. (bound form) a moment (Taiwan pr. huǐ)
=4 會 kuài (bound form) to reckon accounts
=4 會 kuò only used in 會撮／会撮
5 孤獨 gūdú
  1. lonely
  2. solitary
=6 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=6 是 shì variant of 是 shì
7 因為 yīnwèi
  1. because
  2. owing to
  3. on account of
8 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
9 畏懼 wèijù
  1. to fear
  2. to dread
  3. foreboding
10 他人 tārén another person; sb else; other people