天下的事情,祸患常常产生于疏忽细微之处,而人的志向也要警惕逐渐放纵。
A tannery's wastewater is the truest measure of its values.
If something is boring after two minutes, try it for four. If still boring, then eight. Then sixteen. Then thirty-two. Eventually one discovers that it is not boring at all.