為了正當目的可以不擇手段。

The end justifies the means.

Source: Tatoeba

Sentence Composition

1 為了 wèile for; for the purpose of; in order to
=2 正當 zhèngdāng
  1. timely
  2. just (when needed)
=2 正當 zhèngdàng
  1. honest
  2. reasonable
  3. fair
  4. sensible
3 目的 mùdì purpose; aim; goal; target; objective

classifier: 個
4 可以 kěyǐ
  1. can
  2. may
  3. possible
  4. able to
  5. not bad
  6. pretty good
5 不擇手段 bùzéshǒuduàn
  1. by fair means or foul
  2. by hook or by crook
  3. unscrupulously