学而不思则罔，思而不学则殆

xué ér bù sī zé wǎng , sī ér bù xué zé dài

To learn without thinking is confusing, to think without learning is dangerous (Confucius)

学

xué

to learn

而

ér

and

不

bù

no; not so

思

sī

to think

则

zé

(literary) (conjunction used to express contrast with a previous clause) but; then

罔

wǎng

to deceive

，

,

思

sī

to think

而

ér

and

不

bù

no; not so

学

xué

to learn

则

zé

(literary) (conjunction used to express contrast with a previous clause) but; then

殆

dài

(literary) dangerous; perilous