I'm almost finished a translation job that includes this expression: 「学ぶことを怠らない、鍛えることを怠らない、人に親切にすることを怠らない。」 The text refers to this as an everyday expression but it doesn't seem to be very common (on Google, at least). 「怠らない」translates as "not to neglect." But can anyone suggest a good translation or English equivalent? Thanks in advance.
A common expression?!