By very small

1. Alma 37: 7
     7 And the Lord God doth work by means to bring about his great and eternal purposes; and by very small means the Lord doth confound the wise and bringeth about the salvation of many souls.
2. D&C 123: 16
     16 You know, brethren, that a very large ship is benefited very much by a very small helm in the time of a storm, by being kept workways with the wind and the waves.