Krafft Ehricke
As Ehricke wrote to the U.S. House Space Science and Technology Subcommittee Chairman in 1975, “We all can imagine bold concepts… The time for all of this will come, but it is not at hand. Peoples and governments everywhere will judge the contributory potential of space activities not by the brawn of unbridled imagination, but by the skill with which we temper imagination with responsiveness to human needs and economic realities. Their support of space activities will be in proportion to the degree to which we can distinguish between spending on and investing in space.”