To speak is to risk, but to be silent is to risk more.
說(shuō)話是一種冒險(xiǎn)，但沉默是更大的冒險(xiǎn)。
The march of invention has clothed mankind with powers of which a century ago the boldest imagination could not have dreamt.
晏子春秋
Learning is not simply the accumulation of knowledge but the transformation of understanding.