Thus every member on the earth is responsible to be heedful in the forever survival of our earth .
所以,凡为地球家园的成员,都有责任关心地球的永续生存。
Because the risk of introducing a bad language feature is so high , language designers need to be conservative when making the cost-benefit analysis of whether the good outweighs the bad . If in doubt , we should be heedful of the maxim primum non nocere : first , do no harm .