You cannot do without one specialty; you must have some base-line to measure the work and attainments of others.


In: Charles Frederick Holder, Louis Agassiz: His Life and Work, At Penikese (p. 174)


You cannot do without one specialty; you must have some base-line to measure the work and attainments of others.

You cannot do without one specialty; you must have some base-line to measure the work and attainments of others.

You cannot do without one specialty; you must have some base-line to measure the work and attainments of others.

You cannot do without one specialty; you must have some base-line to measure the work and attainments of others.