Two of the following proverbs have similar meanings. Which ones are they?

Question

Quizplus · Accepted Answer

Bad things come in threes means that if something bad has happened twice, it will most likely happen again.
Misfortune never comes alone means that bad things often come in groups.
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Tomorrow never comes means that a goal or action that is postponed is often never accomplished at all.
What goes up must come down means that good times will not last forever.
All things come to those who wait means that patient people typically get what they want in the end.

Two of the Following Proverbs Have Similar Meanings