S1: Slow and steady wins the race. S2: Haste makes waste. The second sentence:

Both proverbs convey the same message - that rushing leads to poor outcomes while taking time leads to success. 'Slow and steady wins the race' praises measured progress, and 'Haste makes waste' warns against rushing. The second sentence reinforces and supports the message of the first. Therefore, the second sentence confirms the assertion of the first.