All inconsiderate enterprises are impetuous at first, but soon lanquish. [Lat., Omnia inconsulti impetus coepta, initiis valida, spatio languescunt.]
If men gave birth, they'd be less inconsiderate.
You don't hurry a thinker, and you don't talk to him when he's thinking. It's just inconsiderate.
None are so inconsiderate as those who demand nothing of life other than their own personal comfort.