Did You Bring a Bucket?
No matter how the sorghum runs, you have to have a bucket to get it. How much any one gets out of a lecture depends also upon the size of the bucket he brings to get it in. A big bucket can get filled at a very small stream. A little bucket gets little at the greatest stream. With no bucket you can get nothing at Niagara.
That often explains why one person says a lecture is great, while the next person says he got nothing out of it.