74. Darkness cannot drive out da

Sadness cannot drive out sadness  , only happiness can do that; Pessimsm cannot drive out Pessimsm, only optimism can do that.

Idleness cannot drive out idleness, only diligence can do that; Stupid cannot drive out stupid, only wisdom can do that.

I make up my mind to speak English everyday, even though I only can say easy sentences.