迷信之所以存在，是因為人無法接受巧合只是巧合而已。

Superstitions derive from the inability of men to acknowledge that coincidences are merely coincidences.

Source: Tatoeba

Sentence Composition

1 迷信 míxìn
  1. superstition
  2. to have a superstitious belief (in sth)
2 之所以 zhīsuǒyǐ
  1. (after a noun N and before a predicate P) the reason why N P
  2. Example: 我之所以討厭他 wǒzhīsuǒyǐtǎoyàntā "the reason why I dislike him (is ...)"
3 存在 cúnzài
  1. to exist
  2. to be
  3. existence
=4 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)
=4 是 shì variant of 是 shì
5 因為 yīnwèi
  1. because
  2. owing to
  3. on account of
6 人 rén person; people

classifiers: 個, 位
7 無法 wúfǎ unable to; incapable of
8 接受 jiēshòu to accept (a suggestion, punishment, bribe etc); to acquiesce
9 巧合 qiǎohé
  1. coincidence
  2. coincidental
  3. to coincide
10 只是 zhǐshì
  1. merely; only; just; nothing but
  2. simply
  3. but; however
11 巧合 qiǎohé
  1. coincidence
  2. coincidental
  3. to coincide
12 而已 éryǐ
  1. that's all
  2. nothing more