處順境須謹慎，處逆境要忍耐

Robo-translates as:

"Place the favorable circumstances must be discrete, place adverse circumstance must endure patiently."

or

"Things were going to be cautious, be patient in adversity. "

or

"The good must carefully, adversity to be patient."

or

"S 謹 price policy of caution, adversity price to be patient."

And I think might mean:

"Be discrete in good times and patient in adversity."